Rename scripts that run tests for web console

[benjaminapetersen]

Originally suggested in this PR.

Currently, to run tests for web console you would:

hack/test-assets.sh
# followed by
cd assets
grunt test-integration --suite rest_api

We should rename test-assets.sh to something that shows it is for unit tests, then create an e2e script. Potentially we could do something like this:

hack/test-assets-unit.sh
hack/test-assets-e2e.sh
hack/test-assets-integration.sh
hack/test-assets-all.sh 

[benjaminapetersen]

@jwforres @spadgett forgot to mention you back when this was made. I can take this issue. Any thoughts on the format welcome.

[jwforres]

this issue is pretty outdated at this point, especially now that we've got the Makefile and we just run most of our tests directly with grunt when running locally