Update df,d4,d6,d8,d10,d12, and d20

New .png files for the dice, so they are displayed better as an overlay.
v 1.1 Change to standard dice set, d100 ground work

Change the initial set of dice used to the new 'standard' dice set, and
put a bunch of hooks for d100 in the near future.
Merge branch 'master' of https://github.com/psychopez/dicestream.git into test