Maps Dictionary and List field types with custom converters.
Added unit test project. Added stripped-down IUnitOfWork abstraction for LightSpeed context.
Updated StringListTypeConverter and added its unit test.
Updated entities with JsvStringSerializer as default serializer.
Added a custom UnitOfWork to accept pluggable IStringSerializer. Refactored unit testing methods to make it simpler.
Added library instructions and NuGet package scripts.
Merge branch 'develop'