Add TypeScript CRA example

[mucsi96]

Issue:

What I did

I have created an example incorporating CRA2, TypeScript, TSLint, Jest, Enzyme

Closes #5006

[mucsi96]

@shilman Can you help me with broken build? Looks like its totally not related to the changes I have made. Would be very helpful to move this forward

[codecov]

Codecov Report

Merging #5011 into next will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             next    #5011   +/-   ##
=======================================
  Coverage   34.85%   34.85%           
=======================================
  Files         579      579           
  Lines        7038     7038           
  Branches      943      943           
=======================================
  Hits         2453     2453           
  Misses       4082     4082           
  Partials      503      503

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a5b4e89...326d87d. Read the comment docs.

[igor-dv]

This PR is containing changes from wrong commits (probably needs a merge from next).
IMO we don't need this as an example app, considering maintenance cost. Better having it as a CLI test. If this more like having a working example, it can also be done out of the monorepo..

[mucsi96]

I can see that storybook itself is migrating over TypeScript. Its a very popular setup. Because of that I thought it makes sence to have a similar example setup as well. It looks easy now but I spent half a day to make it working as it required quite a bit of investigation. IMO if this is out of monorepo less people will find it. Right now there is quite long documentation related to TypeScript. Maybe we can just point to this example? What do you think?

[igor-dv]

@mucsi96, mind solve the conflicts + fix the linter?

[mucsi96]

@igor-dv Sure! Will create a new PR from scratch based on next branch.