Cleaned up imports...
Applied clang-tidy
Moved CanvasState and some other files
Next commit should remove pub modifier from members of CanvasState and use getters/setters instead.
Members of CanvasState are now private and applied test-tidy
Now have getters that return an immutable reference.
Also, I have no idea what to name some_func.rs
Removed need for some_func and made pub(crate)
