corede-core v6.0.50

To Dos In Publish

1. login to npm:

   $> npm login

2. version update:

   2.1. if change is patch change (bug fix with backward compatibility), then ..- third component of the SemVer will be changed.

   2.2. if change is minor change (new behavior with backward compatibility), then .-. second component of the SemVer will be changed.

   2.3. if change is major change (incompatible change), then -.. first component of the SemVer will be changed.

3. build:

   $> npm run build

4. check which files will be packaged:

   $> npm pack --dry-run 

5. publish:

   $> npm publish