Correct types for rlBindImageTexture (#2808)

src/rlgl.h

@@ -696,7 +696,7 @@ RLAPI void rlCopyShaderBuffer(unsigned int destId, unsigned int srcId, unsigned
 RLAPI unsigned int rlGetShaderBufferSize(unsigned int id);                      // Get SSBO buffer size
 
 // Buffer management
-RLAPI void rlBindImageTexture(unsigned int id, unsigned int index, unsigned int format, int readonly);  // Bind image texture
+RLAPI void rlBindImageTexture(unsigned int id, unsigned int index, int format, bool readonly);  // Bind image texture
 
 // Matrix state management
 RLAPI Matrix rlGetMatrixModelview(void);                                  // Get internal modelview matrix
@@ -4055,7 +4055,7 @@ void rlCopyShaderBuffer(unsigned int destId, unsigned int srcId, unsigned int de
 }
 
 // Bind image texture
-void rlBindImageTexture(unsigned int id, unsigned int index, unsigned int format, int readonly)
+void rlBindImageTexture(unsigned int id, unsigned int index, int format, bool readonly)
 {
 #if defined(GRAPHICS_API_OPENGL_43)
     unsigned int glInternalFormat = 0, glFormat = 0, glType = 0;