add unittest stub for add color to database
Update equals method for Color class
Add dummy unit test
add feature to change database file
fix database name change
Add ToString method on Color class
Add ToString method on DataEntry class
Update unit tests for adding color
Add Light class to save light measurements
Add unit tests for saving Light objects to database
Add Light class to project file
add better merge for sln and csproj file
Merge branch 'json_serializer' of github.com:Vandborg/SW505E14-Software into json_serializer