Added fuzzer

src/fuzz/load_font_fuzzer.c

@@ -0,0 +1,23 @@
+#include "raylib.h"
+#include "stdio.h"
+#include "sys/unistd.h"
+#include "stdint.h"
+
+int
+LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
+{
+        char filename[256];
+        sprintf(filename, "/tmp/libfuzzer.png");
+
+        FILE *fp = fopen(filename, "wb");
+        if (!fp)
+                return 0;
+        fwrite(data, size, 1, fp);
+        fclose(fp);
+
+        Font font = LoadFont(filename);
+
+        unlink(filename);
+
+        return 0;
+}