Fix ExportDataAsCode() data types (#2787)

src/raylib.h

@@ -1058,7 +1058,7 @@ RLAPI void SetSaveFileTextCallback(SaveFileTextCallback callback); // Set custom
 RLAPI unsigned char *LoadFileData(const char *fileName, unsigned int *bytesRead);       // Load file data as byte array (read)
 RLAPI void UnloadFileData(unsigned char *data);                   // Unload file data allocated by LoadFileData()
 RLAPI bool SaveFileData(const char *fileName, void *data, unsigned int bytesToWrite);   // Save data to file from byte array (write), returns true on success
-RLAPI bool ExportDataAsCode(const char *data, unsigned int size, const char *fileName); // Export data to code (.h), returns true on success
+RLAPI bool ExportDataAsCode(const unsigned char *data, unsigned int size, const char *fileName); // Export data to code (.h), returns true on success
 RLAPI char *LoadFileText(const char *fileName);                   // Load text data from file (read), returns a '\0' terminated string
 RLAPI void UnloadFileText(char *text);                            // Unload file text data allocated by LoadFileText()
 RLAPI bool SaveFileText(const char *fileName, char *text);        // Save text data to file (write), string must be '\0' terminated, returns true on success

src/utils.c

@@ -270,7 +270,7 @@ bool SaveFileData(const char *fileName, void *data, unsigned int bytesToWrite)
 }
 
 // Export data to code (.h), returns true on success
-bool ExportDataAsCode(const char *data, unsigned int size, const char *fileName)
+bool ExportDataAsCode(const unsigned char *data, unsigned int size, const char *fileName)
 {
     bool success = false;