Adding CS2 egg (#2725)

* Adding CS2 egg

- Including template config and sourcetv config

* Adding missing quote for rcon password

* Update variable rules for max players and tv port

* Remove package requirement from readme

* Change game order in readme files

* Updating cs2 egg

- removed +net_public_adr from startcommand
- removed server.cfg from installscript
- removed sourcetv.cfg from installscript
- added hostname, sv_password and rcon_password to startcommand
- updated readme

* Update start parameters

- removed game_alias
- added game_mode & game_type

* Update map variable

- removed pre-defined map values
- add example values to description as of 2024-02-14

* fix readme

---------

Co-authored-by: Quinten <67589015+QuintenQVD0@users.noreply.github.com>

game_eggs/steamcmd_servers/README.md

@@ -60,6 +60,10 @@ This is a collection of servers that use SteamCMD to install.
 
 [Core Keeper](core_keeper)
 
+## Counter-Strike
+
+[Counter-Strike](counter_strike)
+
 ## Craftopia
 
 [Craftopia](craftopia)