Add Human Player Names

[LaFayette]

From: https://github.com/triplea-game/triplea/issues/5362

For PBEM games with multiple players, it would be nice to set the player name so there is no confusion about who is playing what country. I would set the name on the "Select Local Players and AI's" menu.

CoolNewfie created this issue in triplea-game/triplea

closed Add Human Player Names #5362