* feat: add support gamepad buttons
* feat: add support gamepad with github repo
* feat: add gitmodules dependency
* feat: add submodule qtgamepad
* chore: update qtgamepad submodule to commit 4e57142e563b931766056b4c7507c16892260222
* fix: update qtgamepad with standard CMake and private headers support
Update qtgamepad to commit f72b3e0 which:
- Replaces qt_add_library with standard add_library to avoid Qt 6.10 macro conflicts
- Copies private headers to build include tree for Android backend
- Creates Qt:: and Qt6:: namespace aliases for proper linking