Add miniforge_console_shortcut on windows

[ericpre]

Fix #62.

• Add miniforge_console_shortcut on windows to add start menu shortcut
• Upload installer as github artefact when workflow doesn't run on tag.

[hmaarrfk]

I'm confused about the necessity of menuinst is it still required to get the shortcuts to appear on windows? or has that been built into conda

[ericpre]

menuinst is a dependency of conda. Also, there a few recipe using it on conda-forge, such as for example the ovito recipe and the menuinst dependency is not listed explicitly and I don't see why it would be necessary.
Also, I have added an option to upload the installer as github artefacts, so we can download the two windows installer and test them: it works as expected.

[isuruf]

Let's remove these and upload artifacts always

[ericpre]

Yes, I was annoyed with getting one large artefact but setting the name of the artefact as you suggested above fix it!

[isuruf]

Thanks