Adds compatibility support for MGSFPSUnlock

[ShizCalev]

crouchwalking speed is presently tied to framerate, and the speed multipliers you set in the config file get doubled/tripled/ect when using mgsfpsunlock.

this makes the speed multipliers always consistent by parsing MGSFPSUnlock's ini for the target fps & adjusting accordingly.

[cipherxof]

This is a bit of a messy implementation. We shouldn't be relying on the configuration file of a separate mod to adjust the walking speed. Instead, we should determine what the current fps target is by looking at the actor wait value. Using a pattern scan to look up the value is a bit more prone to breaking, but I suppose we can use a fallback if the value can't be found.

[ShizCalev]

Opps, haven't checked my notifications in a bit!

Implemented the relative offset lookup for actorWaitValue you added in cipherxof/MGSFPSUnlock#22 & kept the FPSUnlock config read in as a fallback in case the patternscan fails - let me know if you just want that part scrapped all together though!

[cipherxof]

Looks good, although I would remove the integration with FPS unlock plugin completely. The actor wait value should be good enough, and if it can't be found just default to the original value.