grafx - Extensible Java Graphics Package Code

Adding OrthographicProjection.

Adding beginnings of class TetrisBoard.

Changing qBestStrategy back to QBEST_STRAT_OPTIMAL_FUTURE_SCORE.

Changing qBestStrategy from QBEST_STRAT_OPTIMAL_FUTURE_SCORE to
QBEST_STRAT_WEIGHTED_2_BEST_FUTURE_SCORES.

This commit centers around the addition of script scripts/launch-retry.sh, which
is related to a computer algorithm retry on same block sequence that was played
before, in order that computer A.I. tweaks could be made and so that the result
could be more easily observed. A class that has been added, which was needed
for this to work, is LaunchComputerPlayerRetry.

In ComputerPlayer, changing qBestStrategy from
QBEST_STRAT_WEIGHTED_3_BEST_FUTURE_SCORES to QBEST_STRAT_OPTIMAL_FUTURE_SCORE.
Strong evidence points to the fact that this option is preferred for very
difficult levels. We're really interested in beating the really hard levels,
mostly.

Adding class net.blockout.event.encode.ImmediateModeGamePlayback.

Changing a comment.

Adding KEY_MILLIS_DROP_INTERVAL and KEY_NUM_LAYERS_TO_CLEAR to BLOFileInfo.

Adding a second constructor to ComputerPlayerLevelAction where finer control of
the level characteristics can be input, especially as pertaining to play block
sequence.