Bettercam sensitivity issues when X and/or Y are inverted about sm64ex

@Zero-Shift
The camera inversion issue is indeed fixed, however now sensitivity is set to 250 and cannot be modified ingame or in the config file

I know what the issue is. I'm adding a PR to fix this.
Edit: Added #65

[urherenow]

unless it's just me, right after the merge with main (haven't checked for new commits yet this morning) DISABLED is actually ENABLED for analog camera. in the pause-Rbutton menu. If not related, the bug is still probably around the same area of code.

EDIT: Also when adjusting the X or Y sensitivity from 75 down to 10, it does nothing, and still shows 75 when you open the menu again.

[IvanDSM]

Thanks for the report. I've pushed a couple of commits that fix both the crazy invert axis option and the hardcoded 75 sensitivity. These have been pushed to master and I will update testing in just a bit.

[IvanDSM]

I've checked and apparently testing doesn't need any fixes. Both issues are already resolved there.

[SkyeHDD]

The camera inversion issue is indeed fixed, however now sensitivity is set to 250 and cannot be modified ingame or in the config file

[urherenow]

don't celebrate yet. I just did a fresh pull, make clean, then rebuild, and now the r-button menu is gone from the pause screen. I can't turn analog camera on now.

OK, I figured it out. I had to make clean, before make BETTERCAMERA=1
I think it should be disabled by default, but built-in without a compile-time flag. People should just be able to enter the menu and activate it if they want to.