Add some tsd tests

[antongolub]

No description provided.

[antongolub]

...to replace dtslint

[mrazauskas]

Also consider TSTyche, https://github.com/tstyche/tstyche

It is new and shinny type testing tool. I wrote it to replace tsd-lite, a fork of tsd that was able to handle monorepos. Unfortunately tsds architecture has many limitations, so I decided to create a new tool.

For example, TSTyche is able to test on specified version of TypeScript tstyche --target 4.8. By default, it loads the installed versions of TypeScript. In contrary tsd ships its own @tsd/typescript. Hence the install size of tsd currently is 48.0MB (note that typescripts size is 20.8MB) and tstyche is only 200kB. Also this means that, if TypeScript gets upgraded TSTyche will use that version, but tsd will still use the one it shipped with.

immutable.js was recently migrating away from dtslint. Their first idea was to use tsd (immutable-js/immutable-js#1985), but after I have pointed to some oddities (immutable-js/immutable-js#1986) they decided to use TSTyche (immutable-js/immutable-js#1988).