Catch-all for packaging JS

Catch-all for packaging JS

Package JS files with Project (#4)

* Enable mypy linting

* Add test for ensuring js is packaged

* Package JS files

Correct packaging #4

Fix JS packaging #3

Update packaging rules for GraphiQL only

Add Graphiql Directive from ScanSpec (#1)

* Update requirements to include Sphinx

* Add Tom Cobb's code for a graphiql directive, originally from ScanSpec

* Add tests to build sphinx pages using the graphiql directive

* Add dev dependency on docutils type stubs to prevent mypy build errors

* Incorporate docs changes from the project template

* Add simple how-to guide on using the graphiql directive

* Add note to docs on how to include plugin in sphinx documentation

* Make Sphinx subheadings consistent across documentation