fix(FEC-10404): media doesn't work properly on Safari browser - no vi…

…deo displayed - Regression bug (#46)

Due to FEC-10057 (move the plugin manager to kaltura player) - Plugins hold a reference to KP and not PK.
KP doesn't have CorsType. Changed to be taken from core import (reference to KP / PK is not needed)

src/vr.js

@@ -6,7 +6,7 @@ import {StereoEffect} from './stereo-effect';
 import {Error} from './errors';
 import './style.css';
 
-const {Error: PKError, FakeEvent, Utils} = core;
+const {Error: PKError, FakeEvent, Utils, CorsType} = core;
 /**
  * The video tag class.
  * @type {string}
@@ -130,7 +130,7 @@ class Vr extends BasePlugin {
       (env.os.name === 'iOS' || env.browser.name === 'Safari' || env.browser.name === 'Android Browser')
     ) {
       this._crossOriginSet = true;
-      this.player.crossOrigin = this.player.CorsType.ANONYMOUS;
+      this.player.crossOrigin = CorsType.ANONYMOUS;
     }
   }