adds MetaDataList extention to all data model classes
Merge branch 'develop' of https://github.com/AhmedShafei/HRForecast-WFM into Feature-graphs-main-layout
Merge branch 'Feature-graphs-main-layout' of https://github.com/AhmedShafei/HRForecast-WFM into Feature-graphs-main-layout
Implemented the ChartValueSelectedListener and the dialog