Chess Clock: Showing no. of moves

[susmitpy]

Is your feature request related to a problem? Please describe. When playing on physical board and using chess clock feature in the mobile app, there is a need to know the no. of moves played so far

Describe the solution you'd like Keep a move counter initialised to 0 On every tap (either side) increment it by 0.5 A getter can be made for display: current no. of moves, which floors the move counter and returns the integer. The flow:

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Move counter: 0 Getter returns: 0 White taps

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Move counter: 0.5 Getter returns: floor(0.5) = 0 Black taps

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Move counter: 1.0 Getter returns: floor(1) = 1

Additional context It can be shown either besides the centre buttons or as a floating badge besides the centre buttons

[veloce]

I'll see if I have the time, in the meantime PR would be accepted!

[jas14]

Complete!