pull request from closed #79 magazines, masses and recoil

[kOepi123]

Hey, I finally managed to get this working.

• added a few magazines ( AKM, 762x51 belts ), and integrated the belts into the core ( belts )

• changed some initspeeds, some will need to be reviewed by me, no idea why someone set them so high so I stopped adjusting them. => #82

• merged recoil values from the touched addons into the core cfgrecoil

• tried to make a config standard of those lines that I touched, but I realized it needs to be established and agreed on first #82

• I hereby urge to pay attention to that issue #82 , so I dont have to do things twice,

• I will avoid, in the future, to change exclamation appereance, it is a hastle.

• Recoil values for upright and prone mmgs are still WIP.

• mg3, mk 48 and m60 can now shoot m13 link ammunition.

• mk 48 and m60 cannot shoot dm-1 ammunition from the mg3.

I was able to build every addon I touched, except for the ak addon.

P.S.: look from bottom upwards. for some reason my branches and merged files were reverted again. ...

[jonpas]

You definitely don't want to change class names, that will break all missions using them.

[kOepi123]

in #79 you also pointed out that the new magazine mass is heavier than a BI magazine. I found another argument for this: the 6.5 mm CASELESS cartridge is much lighter than a conventional one, missing the brass container to hold the propellant and the projectile. This is a legit argument to state that your conventional magazines are ought to be heavier than BI magazines. ( I thought they actually were not accurately determined ).