Removed dependency to OfficeDevPnP.PowerShell.Core cleaned up usings
Added GetHealthScore method
Removed OfficeDevPnP.PowerShell.Core
Marked as obsolete
Removed Core folder due to project not needed in solution anymore.
Fixed bug returning error that StringId is not present.
Fixed bug with XML generation
Merge pull request #69 from erwinvanhunen/fixes

Removed OfficeDevPnP.PowerShell.Core Dependency