Merge pull request #23 from ipvalverde/fix-observable-collection-bug

Fixes #21 for ObservableCollection properties

Merge pull request #22 from ipvalverde/add-support-efcore-issue-21

Fixes issue #21

Adds xml documentation to nuget package

Stable version with support to .net 4.0, 4.5 and netstandard2.0!

Build configuration update

Fixing build and nuget package generation

- Adding back support to .net 4.0 and 4.5. (fix #4)

Stable version using netstandard2.0

New functionalities added!

Adding data convertion function and simple data extraction for collec…

…tions

Adding support for unpivoting multiple columns into a collection, as …

…suggested in issue #8