Add borderless window to ac2 (uplay edition)

[kirides]

This lets us play the game in borderless window mode (by default) and can be toggled off using BorderlessWindow=0 option in ini. It opens the way for a proper fix for #13

It works by hooking the call to the initialization method that creates the IDirect3DDevice9.

It sets the global IsFullscreen flag to 0 and then it proceeds to grab primary screen metrics, remove borders from the window and resize the game window.

attached is a pre-built version of the patch with the feature added.

EaglePatch_borderlesswindow_ac2_uplay.zip

It is missing the addresses for AC1 and the retail version of AC2 as i don't own those and dont like playing AC1

Also, a neat(?) side effect of the borderless window is, that DXVK now doesn't crash the game anymore (tested with DXVK 2.5 on windows 11)