Merge #3 from physics-fix : Bug Fixes and ANGLE Support

Bug Fixes and ANGLE Support

hide_border_on_maximize and font bugfix

- new flag hide_border_on_maximize to make maximized window on the ending sequence looks (when turning of fullscreen ending) nearly identical with an actual fullscreen. This is for showcasing purpose since the switch between orbiting keys and the ending sequence may freeze recording software
- replaced most of the font with selawik

bugfix setting file doesn't get read AND memory leak fix

- actually an important patch since the first release the setting file doesn't work at all
- script/unused now getting gitignored
- found memory leak (`push_input` error), fixed with new method of switching scene (very fast timer)
- new option to set volume of audioplayer
- `test_save_feature_on_editor` typo fix
- automatically update config file if a new category (key) is added
- `OS.has_feature("standalone")` changed to `OS.has_feature("template")` (the correct working one)
- main window is minimized now on `no_ending_screen`
- updated export presets with exclusion
- new editorscript `toggleaddons`. This script modifies project.godot, used to disable addons i used locally (discord rpc and script ide) before push the repo. running the script again will enable the addon back. disabled addons are saved in `disabledaddons.cfg`

New savesystem, preparing for release

- added the no ending mode, where after choosing key, only popup that will tell if you're right or wrong.
- export filter using exclusion instead to simplify
- export filter now using encryption in mind (but deactivated by default
- scenehelp image updated with the removal of rewrite_save
- removed old quasar098's python code as it's no longer relevant
- the whole test folder now removed and gitignored
- disable 3d for keywindow (idk if it matters on performance)
- added the acceptdialog to the mainscene
- audioplayer (LimboAudio) now adjusted to also be able to play the winning sfx
- saving system adjusted, now detects if the game is exported and adjust automatically. This behavior can be debugged/checked in editor via tast_save_feature_on_editor flag