Vendored view cli

[Oddant1]

Cli side of qiime2/q2view#25

[ebolyen]

What we are going to need to do is add q2view to the build process for q2cli. We can handle that in the Makefile (this will be a bit similar to how we build the vendored visualizations in q2-diversity, so that is a pretty ok example).

[Oddant1]

@ebolyen how do you feel about making q2view a submodule of q2cli to accomplish this?

[ebolyen]

Ok, I like the submodule approach I think.

Acceptance Criteria:

• make dev will build the vendored q2view and write it to an in-package q2cli/assets/ (or q2cli/vendor/) directory which q2cli will then use once installed.
• make install will do the same steps to vendor q2view as make dev. It should be verified that a conda build of the recipe includes the working vendored copy.
• The source code of q2view should not be in the installed package itself, only the built JS application.