game/debugging: Add a new imgui menu to filter debug text and adjust imgui config settings

[xTVaser]

This adds a new ImGUI menu to help filter out the clutter on screen.

8mb.video-YOH-UpUA98gw.mp4

This also:

• moves the imgui display bool into a game specific config file (you can hide it in jak1, and not in jak2)
• the config file also persists the settings from this menu (except the filters for now, future TODO)
• there is a new ignore_imgui_hide_keybind in this file to ignore hiding it when you press Alt