Task/javascript testing

[ijdickinson]

Add JavaScript testing to the app setup. Tests run under Jest, using vue-test-utils. This is more about setting up the capability rather than creating extensive tests (but then, we don't have extensive components to test at the moment!)

[coveralls]

Pull Request Test Coverage Report for Build 31

• 251 of 276 (90.94%) changed or added relevant lines in 9 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+43.7%) to 89.161%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
app/lib/lda_api.rb	48	49	97.96%
app/lib/bwq_service.rb	52	57	91.23%
app/lib/lda_resource.rb	80	89	89.89%
app/models/compliance_assessment.rb	16	26	61.54%
<!--	Total:	251	276	90.94%	-->

Totals
Change from base Build 14:	43.7%
Covered Lines:	255
Relevant Lines:	286

---

💛 - Coveralls

[ijdickinson]

Need to merge now, to resolve a git conflict