This PR updates PySDL2 to bind the new functions and constants in SDL2 2.0.20. Since 2.0.20 basically a bug fix release, there aren't many major changes except for the RenderGeometryRaw function (the minimum version of which was bumped to 2.0.20 because its argument types changed).
Merge Checklist
[ ] the PR has been reviewed and all comments are resolved
PR Description
This PR updates PySDL2 to bind the new functions and constants in SDL2 2.0.20. Since 2.0.20 basically a bug fix release, there aren't many major changes except for the RenderGeometryRaw function (the minimum version of which was bumped to 2.0.20 because its argument types changed).
Merge Checklist
closes #<issue-number>to automatically close an issue