feat(FEC-8212): support modular build process

[OrenMe]

Description of the Changes

This PR will enable building the kaltura player as a modular bundle allowing to choose which packages are added to the bundle.
In order to allow this all dependencies were removed and are now subject to the application building the player to add them.
The kaltura player is now only the "convenience" wrapper project that allows doing complex operations with single methods(i.e. call loadMedia calls provider, parses and response, checks for errors, set config and evaluates tokens and then loads playkit).
This will allow to move the responsibility to choose dependencies in the bundler and remove unused packages from the payload, which will lead to smaller bundle and faster load times etc.
This will also enable us to hook the project to our generic CI/CD pipe and deploy passing builds on the fly to the staging area.

Need to:

• Handle Shaka expose for DTG
• Generate docs
• Docs for new register methods

CheckLists

• changes have been done against master branch, and PR does not conflict
• new unit / functional tests have been added (whenever applicable)
• test are passing in local environment
• Travis tests are passing (or test results are not worse than on master branch :))
• Docs have been updated

[yairans]

revert this file