Pyxel

- Fixed the way to decide the automatic screen size
- Fixed the API description in the READMEs
- Changed the way to handle runtime errors
- Changed save and load APIs to no return bool
- Specified the version of Python in the READMEs
- Added the play_pos API to Example 4
- Added the description of the included libraries to the READMEs
- Updated the screenshots of Example 3 and 4
- Fixed game controller input
- Improved the performance of Tilemap Editor

- fixed the install_pyxel_examples script to include .pyxres file

- Modified .gitignore to ignore .vscode files
- Changed to use SDL2 instead of GLFW
- Removed the refimg argument from the Tilemap methods
- Changed the save and load method to return bool value
- Removed the run_with_profiler API
- Changed the max screen size to 256
- Added the play_pos API
- Changed arguments of the clip API
- Changed arguments of the rect and rectb APIs
- Modified the examples according to the API changes
- Renamed the resource file extension to .pyxres
- Added the drop_file property
- Added the caption API
- Changed the way to detect the caller script

- Simplified comparisons
- Removed a deprecated function
- Applied static decorator to functions do not use self
- Fixed to keep the previous frame when cls is not called
- Changed frame_count to start from 0
- Fixed the gamepad constants

- Added the supplement of installation method to the manuals
- Added the type hints for Python

- Added the way to import images on Pyxel Editor to the manuals
- Fixed the type hints
- Added GLFW dll for Windows