Removed leftovers from testing.

Buffed melee attack of Red, White, and Black Bear Infantry to 8 from 6 and charge bonus to 18 from 15.

I tried to fix the units wandering. So far, my testing has shown great improvements, but I will have to see more.

- Changed some uniforms to be more to my liking. Note: if you do not like the uniforms, you can and should download PFM or RPFM and remove the uniforms.
- Retouched morale changes. Units should rally twice as quickly, and not shatter as much.

- Implemented morale changes (easier to break, particularly when lots of casualties happen in a short time; this is to buff breechloaders against melee infantry charging, but it should not change the firefight very much; on the other hand, units are harder to shatter; this is subject to change).
- Fixed carbine and imperial guard cavalry animations (they now use their katanas as katanas when on foot).
- Buffed suppression fire, removed it from Tosa riflemen and Gatling guns.
- Removed kneel fire from US Marines; this was an unintended mistake as I had originally intended them to be fighting in close order.
- Morale buffs from experience are nerfed. This is again to benefit the breechloaders, who rely on slowly racking up kills as opposed to the "shock" of charges or close order formations.

Fixed carbine cavalry and imperial guard cavalry changing formation after dismounting and then remounting (it would become 2 ranks plus a third rank of 2 men, instead of just two ranks; it was very ugly, although of no consequence in truth). To anyone suffering a similar issue, it was fixed by changing the radius of their battle_entities to 1.5, and close formation spacing horizontal to 1.95; strangely, both had to be done to fix this, thus it was a great headache.