LV2_Atom

LV2_Atom is used at run time in 3 crates (of which 1 optionally).

Depender (with downloads and own rev deps)			LV2_Atom version
100	1	lv2-midi		^2.0.0
	1	lv2-state		^2.0.0
	1	lv2	optional	^2.0.0