[FEATURE REQUEST] Update on #32

[KewaiiGamer]

This is an update on #32
!swap is missing.
!1up / !hrevive is missing
!xyz is missing
!respawn was implemented with !1up / !hrevive logic
!disarm is missing
!exec is missing
!restartgame and !restartround are implemented with exact game logic (mp_restartgame 2)
!heal only exists as !hp. add aliases css_heal and css_health by default

!spec <#userid|name|steamid|targetid> should be implemented as an alternative to !team <#userid|name|steamid|targetid> spec