Added two more accessors to attackerPlayerIdx and defenderPlayerIdx, and tidied up test code to use accessors
Added required file includes to test files
Reintroduced dummy tests for BMContainer
Reintroduced dummy tests for BMDie
Corrected file dependencies
Reintroduced dummy-dependent unit tests for BMSwingDie
Reintroduced dummy-dependent unit tests for BMAttack and BMAttackPower
Reintroduced a few more dummy-dependent unit tests for BMAttack and BMAttackPower
Reactivated a number of commented tests, added @covers to BMSwingDieTest.php
Tidied up indentation