Add more AI scripts for 3.4

[tdauth]

• Dalaran #1457 heroes Archmage, Sorceress, Wizard
• Kul Tiras #838 Hydromancer, Admiral Proudmoore
• Pandaria, Tauren and Trolls when finished
• Medieval #1035 with heroes Knight, Bishop etc.
• Roman Empire #1034 missing a hero like Caesar
• Star Wars Galactic Republic, CIS and Empire and Rebel Alliance
• Lord of Rings #1033

Add the entries to the FDF files and support creating start units for the computer players.

[tdauth]

If the combo box has too many entries add something like "...More" and change its values?

[tdauth]

Done.