Update and improve e2e-cypress (master)

[cschweikert]

The following things in the current e2e-cypress quickstarter have been updated, added or improved:

• cypress: 7.5.0 -> 9.5.3
• typescript: 4.3.2 -> 4.6.3
• switch to new Node.js 16 build agent
• instead of precompiling TypeScript code it is possible to make use Cypress' native support for TypeScript
• improve the structure of the example code (login commands)
• provide recipes for get around post-installation of Cypress' binaries
• bring documentation up-to-speed
• tslint is deprecated -> removal of linting support and hint about eslint and prettier

Fixes #770

Tasks:

• Updated documentation in docs/modules/... directory
• Ran tests in <quickstarter>/testdata directory

Please note

1. I took ownership for e2e-cypress. I also talked with @tbabik and removed him from CODEOWNERS

2. The support for TSLint was removed from this quickstarter. Please consider adding ESLint support or a formatter like Prettier.

3. This quickstarter already uses version 16 of the nodeJS-based build agent. An update of this version is done in Nodejs 12 EOL in April #763 and need to be merged first. Nevertheless it is successfully tested with version 16.

4. The unit testing capabilities are currently broken (see for exmple Quickstarter tests: Verifying Jenkins run attachments fails ods-core#1124 and Provisioning of projects doesn't setup Jenkins with Aqua credentials  ods-core#1125). I filled the gaps as good as I could with manual tests.

5. There will be a follow-up PR for the 4.x branch.

[cschweikert]

The native TypeScript support of Cypress reminded me to the disussion we had earlier today 😉

[m-apsolon]

tbabik is our colleague, imo you could also share ownership; otherwise, looks good to me.

[tbabik]

@m-apsolon @cschweikert I'm all good with transfering ownership. Had a quick chat with Christian on Friday about it. Thanks!

[cschweikert]

@m-apsolon Yeah, sry for the confusion.