Guide to freeing up more enemy slots

Merge #377 Soldier with #1 Soldier - This is one I will definitely have to test. The #377 Soldier is the enemy used in Terra's flashback where she fries the Imperial troopers, it has only 1 HP and no AI script. All the event data for this scripted fight is tied to the enemy used for Terra's script, so I believe the Soldiers can be swapped without harming anything, and the event will be fine. The normal Soldier only has 100 HP, so Terra will still certainly kill the trooper in the scene.

I made a modification to the Terra flashback scene in my project and ran into some issues with swapping out #377 for a similar enemy.  #377's battle script is completely empty so it does not fight back, while #1's battle script has an Attack command in it.  Therefore, if I put a different enemy in #377's place that did not have an empty battle script I was finding that it was often able to take a turn and attack Terra before she got the chance to kill it.  It can't kill Terra, but it still breaks the flow of the scripted flashback if the enemy actually takes a turn.