Bug 32030: ERM - Add "integration" tests using Cypress

Bug 32030: ERM - Add "integration" tests using Cypress

We are mocking the REST API routes responses here, we could do better,
but it's a nice first step.

To run the tests:
From the host (ie. *not* inside ktd): `yarn run cypress open`

Signed-off-by: Jonathan Field <jonathan.field@ptfs-europe.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>