Record and playback - POC for skip functionality in common recorder

[HarshaNalluru]

Managing the list of test names would mean that we should frequently update them whenever a test name changes or a new test is added.
The plan is to avoid the skip list becoming stale in the following way.

Providing a .skip() method with the recorder so that it can be called from the it block to skip a test.

Let us take a moment to understand what happens with this change.

• We no longer have to save/update the skip list
• Test can be skipped by calling recorder.skip("browser"); or recorder.skip("node"); in the it block based on the environment we want the test to be skipped
• In the record mode, the recording will be generated with the info right from when the recorder is invoked in beforeeach until the skip() method that is invoked in the it block.
  • We need to save(and commit) this recording for the playback mode since the recorder has no way to know that the test is being skipped until the skip() method is called.
    [ A small tradeoff for getting rid of skip list and still add the convenience of invoking the recorder in beforeeach ]

[WIP] Will rebase and merge this in the common recorder module which is in PR - #4281

/cc - @ramya-rao-a @XiaoningLiu @kinelski @sadasant

[HarshaNalluru]

Update Guildelines accordingly.

[XiaoningLiu]

Do we still need commentted code here?

[HarshaNalluru]

No, this will be deleted.
This current PR is just to show how the skip list can be avoided and hear some feedback for it.
Instead of doing the updates in recorder.ts files, I'm planning to update the new common recorder #4281.

[XiaoningLiu]

recorder.skip("browser") requires us typing string "browser" everytime. Can we provide recorder.skipBrowser(), or require a union type like "browser" | "node" for the parameter?

[HarshaNalluru]

Thanks, @XiaoningLiu, I like the recorder.skipBrowser() idea more. Will work on updating this.

[HarshaNalluru]

#4898 is merged, Closing this!