[examples] `core_directory_files` fixes (#5343)

* [examples] reset on folder click

`continue` after clicking a new folder

* [examples] don't make non-directories clickable

`IsPathFile` is not enough to check if it's a directory
since it also takes in char devices.

* rlparser: update raylib_api.* by CI

* Delete tools/rlparser/rlparser

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Ray <raysan5@gmail.com>

examples/core/core_directory_files.c

@@ -69,18 +69,19 @@ int main(void)
             DrawText(directory, 100, 40, 20, DARKGRAY);
 
             btnBackPressed = GuiButton((Rectangle){ 40.0f, 40.0f, 20, 20 }, "<");
-            
+
             for (int i = 0; i < (int)files.count; i++)
             {
                 Color color = Fade(LIGHTGRAY, 0.3f);
 
-                if (!IsPathFile(files.paths[i]))
+                if (!IsPathFile(files.paths[i]) && DirectoryExists(files.paths[i]))
                 {
                     if (GuiButton((Rectangle){0.0f, 85.0f + 40.0f*(float)i, screenWidth, 40}, ""))
                     {
                         strcpy(directory, files.paths[i]);
                         UnloadDirectoryFiles(files);
                         files = LoadDirectoryFiles(directory);
+                        continue;
                     }
                 }