try_opt

try_opt is used at run time in 8 crates. It is a direct run-time dependency in 5 crates.

Depender (with downloads and own rev deps)			try_opt version
	1	ruplicity		^0.1
		jagged_array		^0.1
	2	oftlisp		^0.1.1
		purs		^0.1.1
		rofl		^0.1