Fix a couple errors + better README

Quick README fix

timer.Simple first call so spawnmenu changes work

UX improvements

Fix a couple more reloading errors

Move a lot of PrimaryAttack logic into the base

Not entirely complete, but this fixes some issues that were occurring on various weapons

Fix error from dying while in weapon selection

Fix Springfield/MG42 reload errors

Also removed the commented out IronSightAng variables

Fix a small typo

Removed some unnecessary code bits

All of these values were already set in the base weapon and were exactly the same in every single weapon, so they should just make use of the base's value instead.

Also moved the ACF logo material to a slightly better location and fixed a bug that allowed you to fire while sprinting with the shotgun.