Purge (Leaderboards, Purge Shop, Statistics & More)

UPDATE

1. Added German translation thanks to Gamer688
2. No longer writing the color in the chat notify net message because it's constant anyways.
3. Fixed unessessary multiple uses of SetDrawColor and SetMaterial in some code.
4. Removed unused variables and caching of variables only used once.
5. Using variable for steamid64 on load in case it becomes nil on callbacks.
6. Fixed Nick field being in multiple SQL tables.
7. SQL security updates.
8. Rewrote entity saving system.
9. Rewrote leaderboard queries and networking.