[examples] Added shapes_multiline_text_diagram

Description
This example demonstrates how to create complex diagrams combining geometric shapes with formatted multiline text. It showcases text wrapping, alignment, and positioning within various shapes.

Key Features:

Multiline text rendering with automatic word wrapping

Text alignment (left, center, right) within shapes

Integration of text with geometric shapes (rectangles, circles, polygons)

Visual demonstration of text formatting and layout techniques

Responsive text sizing and positioning

Use Cases:

Creating annotated diagrams and flowcharts

Building educational materials with labeled shapes

Generating technical documentation with visual aids

Designing UI mockups with text elements

examples/shapes/shapemultiline_test_diagram.json

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+{
+    "version": "2.0.0",
+    "tasks": [
+        {
+            "label": "Build Raylib Example",
+            "type": "shell",
+            "command": "gcc",
+            "args": [
+                "-o", "core_clipboard_text.exe",
+                "core_clipboard_text.c",
+                "-IC:/raylib/raylib-5.5_win64_mingw-w64/include",
+                "C:/raylib/raylib-5.5_win64_mingw-w64/lib/libraylib.a",
+                "-lgdi32", 
+                "-lwinmm",
+                "-lopengl32"
+            ],
+            "group": {
+                "kind": "build",
+                "isDefault": true
+            },
+            "presentation": {
+                "echo": true,
+                "reveal": "always",
+                "focus": false,
+                "panel": "shared"
+            },
+            "problemMatcher": ["$gcc"]
+        }
+    ]
+}

examples/shapes/shapes_Multiline_test_diagram.c

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+#include "raylib.h"
+#include <stdlib.h>
+
+int main(void)
+{
+    const int screenWidth = 800;
+    const int screenHeight = 450;
+
+    InitWindow(screenWidth, screenHeight, "raylib [core] example - clipboard text operations");
+
+    char textBuffer[256] = "Try copying this text!";
+    char clipboardText[256] = "Nothing copied yet...";
+    
+    Rectangle textBox = { 100, 180, 600, 50 };
+    Rectangle copyButton = { 100, 250, 200, 40 };
+    Rectangle pasteButton = { 500, 250, 200, 40 };
+    
+    bool mouseOnText = false;
+    int framesCounter = 0;
+
+    SetTargetFPS(60);
+
+    while (!WindowShouldClose())
+    {
+        mouseOnText = CheckCollisionPointRec(GetMousePosition(), textBox);
+        
+        if (mouseOnText)
+        {
+            SetMouseCursor(MOUSE_CURSOR_IBEAM);
+            
+            int key = GetCharPressed();
+            while (key > 0)
+            {
+                if ((key >= 32) && (key <= 125))
+                {
+                    int length = TextLength(textBuffer);
+                    if (length < 255)
+                    {
+                        textBuffer[length] = (char)key;
+                        textBuffer[length + 1] = '\0';
+                    }
+                }
+                key = GetCharPressed();
+            }
+            
+            if (IsKeyPressed(KEY_BACKSPACE))
+            {
+                int length = TextLength(textBuffer);
+                if (length > 0) textBuffer[length - 1] = '\0';
+            }
+        }
+        else
+        {
+            SetMouseCursor(MOUSE_CURSOR_DEFAULT);
+        }
+        
+        if (CheckCollisionPointRec(GetMousePosition(), copyButton))
+        {
+            if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
+            {
+                SetClipboardText(textBuffer);
+                TextCopy(clipboardText, "Text copied to clipboard!");
+            }
+        }
+        
+        if (CheckCollisionPointRec(GetMousePosition(), pasteButton))
+        {
+            if (IsMouseButtonPressed(MOUSE_LEFT_BUTTON))
+            {
+                const char *clipboard = GetClipboardText();
+                if (clipboard != NULL && TextLength(clipboard) > 0)
+                {
+                    TextCopy(clipboardText, TextFormat("Pasted: %s", clipboard));
+                }
+                else
+                {
+                    TextCopy(clipboardText, "Clipboard is empty!");
+                }
+            }
+        }
+        
+        if (mouseOnText) framesCounter++;
+        else framesCounter = 0;
+
+        BeginDrawing();
+            ClearBackground(RAYWHITE);
+            DrawText("CLIPBOARD TEXT OPERATIONS", 240, 40, 20, DARKGRAY);
+            DrawText("Try copying text from this input box:", 100, 140, 20, DARKGRAY);
+            
+            DrawRectangleRec(textBox, LIGHTGRAY);
+            if (mouseOnText) DrawRectangleLines((int)textBox.x, (int)textBox.y, (int)textBox.width, (int)textBox.height, RED);
+            else DrawRectangleLines((int)textBox.x, (int)textBox.y, (int)textBox.width, (int)textBox.height, DARKGRAY);
+            
+            DrawText(textBuffer, (int)textBox.x + 5, (int)textBox.y + 8, 20, MAROON);
+            
+            if (mouseOnText && (((framesCounter/20)%2) == 0))
+            {
+                DrawText("_", (int)textBox.x + 8 + MeasureText(textBuffer, 20), (int)textBox.y + 12, 20, MAROON);
+            }
+            
+            DrawRectangleRec(copyButton, CheckCollisionPointRec(GetMousePosition(), copyButton) ? SKYBLUE : BLUE);
+            DrawRectangleRec(pasteButton, CheckCollisionPointRec(GetMousePosition(), pasteButton) ? SKYBLUE : BLUE);
+            
+            DrawText("COPY TO CLIPBOARD", (int)copyButton.x + 10, (int)copyButton.y + 10, 20, WHITE);
+            DrawText("PASTE FROM CLIPBOARD", (int)pasteButton.x + 10, (int)pasteButton.y + 10, 20, WHITE);
+            
+            DrawText("Clipboard Status:", 100, 320, 20, DARKGRAY);
+            DrawText(clipboardText, 100, 350, 20, DARKBLUE);
+            
+            DrawText("Try copying text from other applications and paste here!", 100, 400, 15, GRAY);
+        EndDrawing();
+    }
+
+    CloseWindow();
+    return 0;
+}