[hde_mod] Feature Request: allow team selection in RMG dialog

[potmdehex]

From heroescommunity.com

if possible, can you add the ability to select the teams from the new map screen, or make it so human/computer players are allied when using both computer only and human/computer and teams?

One way to implement the GUI of this would be a button/something which shows the already existing team selection GUI that usually is shown in Map Properties. The actual setting of teams can be done either through reverse engineering and modifying the map editor state during conversion, but more easy would be to just post-process the map after it has been created in the alread existing rmg_postfix function to set the team as specified by the user.

Done definition: Allow setting teams from RMG dialog