When Cypress was invoked using `ng`, it was throwing errors because no additional properties were allowed. When allowed, all the extra options are passed as array in the `--` key, which is not currently handled. This commit allows additional properties and makes sure that if any adittional options are passed they are parsed and incorporated correctly. ISSUES CLOSED: #3571

{{links}}
Cypress Plugin for Nx
{{what-is-nx}}
What is It?
Builders and schematics adding Cypress tests for frontend applications.
How to Use
This package is used by the @nrwl/web, @nrwl/react, and @nrwl/angular. See https://github.com/nrwl/nx for more information.
{{resources}}