Suggestion: Let F5 cycle trough Scaling Methods when in Fullscreen + Center resized window in Windowed Mode

[TrunXGIT]

In RPG_RT.exe F5 lets you cycle trough zoomed fullscreen and 1x integer scale with black borders.
So cycling trough (Sharp-)Bilinear, Integer and Nearest when pressing F5 in Easyrpg would mimic that behavior in a broader sense.

In windowed mode I noticed that the top-left corner position of the window stays the same when cycling trough the different zoom steps. Which results in a part of the screen being offscreen when choosing one of the higher zoom levels and the need to manually move the window position back to the center to see the whole window. RPG_RT.exe centers the window position every time you press F5.