FLATPAK: implements sblib_has_window_ui() in UI based modules

Author: Chris Warren-Smith

glfw/main.cpp

@@ -404,3 +404,7 @@ SBLIB_API void sblib_ellipse(int xc, int yc, int xr, int yr, int fill) {
   glEnd();
 }
 
+SBLIB_API int sblib_has_window_ui(void) {
+  // module creates a UI in a new window
+  return 1;
+}

nuklear/main.cpp

@@ -1181,3 +1181,7 @@ SBLIB_API void sblib_ellipse(int xc, int yc, int xr, int yr, int fill) {
   drawEnd();
 }
 
+SBLIB_API int sblib_has_window_ui(void) {
+  // module creates a UI in a new window
+  return 1;
+}

raylib/main.cpp

@@ -2098,6 +2098,6 @@ SBLIB_API void sblib_close(void) {
 }
 
 SBLIB_API int sblib_has_window_ui(void) {
-  // raylib module creates a UI in a new window
+  // module creates a UI in a new window
   return 1;
 }