Implemented CardMarks - used with CardAge 

This feature is supposed to shows status of card (M)ulliganed / (C)oin / (R)eturned from board / (S)tolen from players deck as an addition to card age - the specific character is shown under age of card
- including option to disable

Other changes that came to the way
- simplified coin handling (a little bit) - required for stolen cards
- changes in log parsing - some more drastic, but tested with two accounts + about 15 ranked games and some arena
- fixed some cases when card age was showing -1, for example Sap / Brewmaster, related to #31 - return to hand effects in general


Not sure about conflict resolution of 913a096ec4d7cc7badd5ea3e06074dd2e7a56a9b if the disconnect really messes up log, similar check will be required on few more places in my code