dnum

dnum is used at run time in 6 crates. It is a direct run-time dependency in 4 crates.

Depender (with downloads and own rev deps)			dnum version
	4	dvec		^0.3.0
	2	dimage		^0.1.0
		dterm		^0.3.0
	2	dwindow		^0.3.0