Pyxel

- Fixed to receive mouse input when window is activated
- Fixed the window to be active when a file is dropped
- Added the elli and ellib functions
- Added the fill function
- Fixed to work even when audio is not installed
- Updated the READMEs

- Fixed a file drop bug
- Changed to pause only when minimized

- Integrated the release and public actions
- Added the PYXEL_WORKING_DIR constant
- Added a mechanism to check the latest version
- Fixed a bug of the play_pos function
- Added a tick option to the play and playm functions
- Added a partial playback feature to Pyxel Editor
- Fixed a mouse click handling in Sound Editor
- Updated the READMEs

- Fixed the GitHub Actions workflow to publish

- Fixed the play command to remove working directories
- Fixed the key repeat bug
- Added the GitHub Actions workflow to build
- Removed the cli function
- Updated the READMEs

- Fixed the pyxel play command on Windows
- Updated the READMEs