Content Update - V0.2.4

Finally decided to dust off the old project and get a little bit of work done and fix something's that should've been fixed a while ago and even did a little bit of polishing around the rough edges and corners... oh and a new gun as well I guess.

Significant Changes:

• Added Grenade Launcher.
• Added a message when prestige asking if the player wants to return to the main menu. (This is not an "are you sure" message for prestiging, this message appears after prestiging.)
• Changed "Save & Clock Out" button to "Save & Return to Menu".
•  Changed Assisted Semi-Auto to be on by default when creating a new save or launching the game for the first time.
• Changed fire particles to make spotting a target that's on fire easier.
• Fixed Prestiging... for real this time I promise.
•  Fixed guns with varying barrel lengths allowing muzzle devices to float when loading a save for the first time.

Known Issue:

• The Turret Fire Rate Button on the buy menu will allow player's to bypass the turret's fire rate hard cap and not show the price of the fire rate upgrade for turrets. - As of writing this I can't figure out how to fix this issue

These issues I have only seen through someone elses computer and when playing the game myself these issues are not present. However, I felt they should still be brought up to avoid confusion.