Missing documentation for stand-alone feature

[katarzyna-z]

Missing documentation for stand-alone feature (at least I don't see it). Users should know how use stand-alone plugins.

[kjlyon]

Similar to plugin diagnostics is stand-alone functionality something that should go in the plugin libraries or should it go in the Snap documentation? What are your opinions?

@intelsdi-x/snap-maintainers

[katarzyna-z]

I think that documentation for stand-alone plugin should be in main Snap repo. New users takes a look at main repo and looks for features and stand-alone feature should work for all snap-plugin-libs.

[kjlyon]

I agree that information on how to use stand-alone plugins should go in Snap. Should we include information about how to write a stand-alone plugin in Snap or in the plugin-libs?

[katarzyna-z]

I think that information about how to write a stand-alone could be in plugin libs because there are small differences in implementation related to the programming languages