HdWallet

HdWallet is used at run time in 4 crates (of which 4 optionally).

Depender (with downloads and own rev deps)			HdWallet version
850	3	key-share	optional	^0.6
490	2	cggmp21-keygen	optional	^0.6
440		cggmp21	optional	^0.6
		givre	optional	^0.6