Saints Row 1 support & additions to Saints Row 2

[Clippy95]

Should address my first request #20 Just for TU1 right now. This also renames SaintsRow.cc to SaintsRow2.cc, I don't believe they should be merged into one.

input_state.mouse.x_delta has to be / by frametime as the game does, and reads it so.

• [x] Camera hook
• [x] Vehicle bindings and camera (fixed with RS workaround)
• [x] Pause flag
• [x] Havok fix for Saints Row 1&2, fixes cutscene issues, optional toggle.
• [x] Fine aim plugin support by @Tervel1337
• [x] slow sens and panning multipliers down for workaround (cannot be made into a patch)
• [x] Better drive cam option
• [x] HoldFineAim option for Saints Row 2
• Slew mode support?