fix(FEC-10122): destroy cleanup process

[Yuvalke]

Description of the Changes

static class added listeners to the player instance which weren't cleared on destroy.
Add destroy to playlist manager.

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