SHA

SHA is used at run time in 7 crates.

Depender (with downloads and own rev deps)			SHA version
370		chur		^1.0
250		chur-build		^1.0
		clickable_img		^1
		libsip		^1.0.3
		grass-driver		^1.0.3
		inc-sha1		^1.0
		carbon14		^1.0.3