7.0.0-RC2

• Global
  • More Opcache optimizations (@Geolim4)
• Core
  • Updated EventManager now MUST implement Phpfastcache\Event\EventInterface (@Geolim4)
  • Upgraded API version from 2.0.2 to 2.0.3 (@Geolim4)
  • Fixed namespace issue on EventManager (@Cyperghost)
• Helpers
  • Improved TestHelper efficiency (@Geolim4)
  • Forced return type hint to Psr16Adapter && added a getter for the internal cache instance (@Geolim4)
  • The Psr16Adapter will now also accept an ExtendedCacheItemPoolInterface object to the $driver parameter in constructor (@Geolim4)
• Misc
  • Updated Readme (@Geolim4)