[Gameplay] Wrong player IFF when choosing Imperial fighters

[Raffaello Grani]

Some time ago, a feature was implemented which allows players to choose any craft when clicking on "Start mission" while holding RShift. When choosing an Imperial fighter, the player's IFF is automatically set to Imperial. A possible fix would be to automatically set the player's IFF to the mission's original player craft's standard IFF. For example: If in a mission, the player's craft has a Rebel IFF and he/she wishes to fly a TIE Advanced, it would receive a Rebel IFF as well.

[Raffaello Grani]

Fixed in commit bad38c8. Thanks Azrapse.