Add annotation support for buttons#2

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tobyrschwartz wants to merge 4 commits intoNyvil:stablefrom

tobyrschwartz:feature/buttons

Commits on Jan 23, 2022

Initial Commit working on buttons. Untested and see todos
tobyrschwartz
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Commits on Jan 24, 2022

Added a way to store methods/classes: ButtonMethods.java. Continued working on button support. Check pretty much final todo until completion/testing
tobyrschwartz
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Commits on Jan 25, 2022

Finished button support. TODO: Documentation
tobyrschwartz
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Commits on Jan 26, 2022

Button click provides the method with buttonclickinfo instead of the event.
tobyrschwartz
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