rsntp

rsntp is used at run time in 4 crates.

Number of dependers	rsntp version	Downloads/month
2	4.0.0	6.7K
2	3.0.2	7.0K

Depender (with downloads and own rev deps)			rsntp version
250		RustGLM		^4.0.0
130		tsar-sdk		^4
		rsdate		^3.0.1
		mymy		^3.0.2