`API`: New gamedll hookchains

[dystopm]

Based on https://github.com/s1lentq/ReGameDLL_CS/pull/849

• Added new functions to API:
  • PM_WaterJump
  • PM_CheckWaterJump
  • PM_Jump
  • PM_Duck
  • PM_UnDuck
  • PM_PlayStepSound
  • PM_AirAccelerate
  • ClearMultiDamage
  • AddMultiDamage
  • ApplyMultiDamage
  • BuyItem
  • CSGameRules::Think
  • CSGameRules::TeamFull
  • CSGameRules::TeamStacked
  • CSGameRules::PlayerGotWeapon
  • CBotManager::OnEvent
  • CBasePlayer::CheckTimeBasedDamage
  • CBasePlayer::EntSelectSpawnPoint
  • CBasePlayerWeapon::ItemPostFrame
  • CBasePlayerWeapon::KickBack (#253)
  • CBasePlayerWeapon::SendWeaponAnim
• Added support to CBotManager class
  • Added GameEventType constants to cssdk_const.inc
• Refactory:
  • Code cleaning in reapi.inc: group valid function index types in macro for better readability
  • Added support to float pointers in forward parameters
• Fixed PM_LadderMove hook which had value 0 on playerIndex
• Extended ReGameFuncs_t structure with new API functions (not implemented as natives yet)

[Natsheh11]

Add a hook aswell for PM_PlayerTrace, to control which entities get to collide with the player...

[dystopm]

Add a hook aswell for PM_PlayerTrace, to control which entities get to collide with the player...

That's a modification that must be done on ReHLDS. PM_PlayerTrace it's a pointer to a function located in engine. Also, "exporting" this function to an AMXX plugin forces to create an interface to handle physent_t (pmtrace_t is implemented) structures, which are pending since PM_LadderMove hook implementation. If you are willing to use this in a submodule, then you can without issues.