SotBE S2: give Kapou'e some gold at end of scenario

This is done so that S3 is roughly equally difficult coming in from S1
and S2.  40 of that 100 gold carries over into S3.
SotBE S3: give AI side all villages in western half of the map

Done so that the AI does not send lots of units off to go village
hunting.
SotBE S3: change starting gold for AI side
SotBE S3: let AI side recruit small number of L2 units

The exact number depends on the difficulty level.