"Main" Assassin enhancement

[TheFrenchGhosty]

Right now the "main assassin" is a bit under-powered, and its name isn't obvious.

This is the change that needs to be done in my opinion:

• His name should be: "Assassin's Master" or "Assassin's Boss"
• His secondary should be an intervention, instead of a repeater
• He should have 2 explosive bolts every "life" consistently (right now it's either 1 or 3 randomly)

[VikingKampfsau]

1. I dont think the name of the assassin really matters but when changing it we need new translations as well.
2. You have to change that in config: config/gametypes.gsc ->scr_assassin_secondary
3. I think 3 is fair enough, but i added a new setting "scr_assassin_explosive_teamSize" to config/gametypes.gsc where you can define for how long he gets 3 explosive arrows.

[TheFrenchGhosty]

His secondary should be an intervention, instead of a repeater

Done in update 7.

He should have 2 explosive bolts every "life" consistently (right now it's either 1 or 3 randomly)

Done in update 7, kinda.