Widget for YouTube Analytics

Jan 3, 2020

fixed some defects;
added possibiliy to see statistics of brand account/channel
added Linechart, Barchart and Total widgets;
added Youtube Analytics metrics:
- annotationClickThroughRate
- annotationCloseRate
- averageViewDuration
- comments
- dislikes
- estimatedMinutesWatched
- estimatedRevenue
- likes
- shares
- subscribersGained
- subscribersLost
- views