Battlegrounds

[Frostshake]

Now possible to queue a battle ground.
remaining issues:

• many npcs still dont show the queue dialog (likely same for portal queue)
• cannot leave queue once joined
  • see Not able to leave Battleground queue WowLegacyCore/HermesProxy#252
  • looks like this can be somewhat worked around by being a party leader / joining as a group - requires further investigation.)
• Win / Loss dialog not shown once BG ends. aa7796c
• gates duplicated
• messages not shown for capturing/loosing base/flag - looks to be an issue server side finding broadcast text - appears vmangos and TC use different id's.

WSG:

• Cannot return flag
  • looks to be related to areatriggers that used to exist in .dbc files, but no longer exist in .db2 (fixed using area trigger hotfix)
• looks to have a similiar issue to classic, where the flag will remain attached to a character for a few seconds after dropping/returning.

AB:

• All flag states showing at same time
• both alliance and horde environment states showing at same time

AV:

• bg stats broken - likely packet issue
• no towers status at top (maybe not part of classic anyway?)
• duplicated mobs
• duplicated flags

[Frostshake]

Some of the bugs here look to be from differences in how vmangos vs TC implement battlegrounds.
e.g vmangos uses db fro gameobjects, but TC uses C++ code.
Will be favouring TC implementation to resolve.

[Frostshake]

Duplicate objects fixed with 931254c