Creating clarinet fingering symbol

This draws a symbol for clarinet fingering indications (e.g., microtonal scales, multiphonic sounds).

Usage : \clFinger arg1 arg2 arg3 arg4 arg5 arg6 arg7 arg8 arg9 arg10 arg11 arg12 arg13 arg14 arg15 arg16 arg17 arg18

All args are numbers with values of 0 or 1 except the last one which can be 0, 1, 2, 3, 4, 12, 13, 14, 23, 24, 34, 123, 124, 134 or 234