Add mocking mechanism and mocked endpoints for production specs

[stephenkao]

Problem statement

We can't rely on a mock Organization when running end-to-end tests against production. Consequently, we need to 1) create a mechanism to switch to mocked API endpoints on production and 2) create mocks for most API endpoints that would otherwise return real data.

What you need to know

• We pass in the environment to the Cypress configuration here. This can be used to toggle mocks on and off.

Acceptance criteria

• [ ] Running Cypress specs against production use mocked data
• [ ] (need to gather a list of endpoints)

[chris-kuryak]

@penny-lischer To break out into individual tickets

[stephenkao]

Rough TODOs:

• Add feature to switch between real and mocked endpoints based on the environment
• Investigate the endpoints we'd need to mock
• Implement mocked endpoints (can be split up into separate tickets)

[chris-kuryak]

@penny-lischer @stephenkao Has this been successfully broken up? And do we need to keep this ticket, or should it be closed as it will be completed by doing the other tickets Penny created? Or does this need to become an epic?

cc: @Andrey-Glazkv

[penny-lischer]

@chris-kuryak I believe the tickets I wrote will suffice but will defer to @stephenkao for additional input.