[ FF7 ] Battle camera control bugs

[tangtang95]

This is a list of bugs I encountered with battle camera controls. Just for remembering, I list it here so we can check it out.

There are some occasion during the start of the battle, where the camera upon taking control (https://github.com/julianxhokaxhiu/FFNx/blob/master/src/ff7/camera.cpp#L265-L272) it snaps in one frame to another camera position. For example, this can be replicated against the thiefs enemies outside the church of Aerith on the road towards Aerith's house. It's not related to the abs() < 1, but maybe it's about this (https://github.com/julianxhokaxhiu/FFNx/blob/master/src/ff7/camera.cpp#L323-L338). What happens if the battle id is the same as the previous battle?

There is also the bug of camera control during the camera end script movement (during fanfare) in the battle against the icicle enemy.

Also, why https://github.com/julianxhokaxhiu/FFNx/blob/master/src/ff7/camera.cpp#L317 the parameter cameraFocusPosition is not used or overwritten?

@CosmosXIII