release: cut the 7.0.0-rc.0 release (NativeScript#1589)

* release: cut the 7.0.0-rc.0 release

* docs: update a link in changelog

Co-Authored-By: vchimev <vasil.chimev@gmail.com>

chore: update CHANGELOG.md

docs: add changelog for 6.0.6

chore: remove private from package.json

Remove `private` key from package.json.

chore: version bumped to 5.3.0 (NativeScript#1267)

* chore: Version bumped to 5.3.0

* docs: add changelog for 5.3.0

* chore: More changelog

* chore: typos fixed

* docs: add a missing whitespace

docs: add changelog for 5.2.0

docs: add changelog for 5.1.0

docs: add changelog for 5.0 (NativeScript#1132)

docs: add changelog for 5.0.0-rc.0