Lab4
Added memento
Added RuntimeSerialization
Added DataContract serialization, Added 2 converters(linq, xmlReaderWriter)
Fixes to 3rd lab
Added ObjectDomToXmlConverter, added additional test

[interface] for DomToXmlConverter
added implementation of IDomToXmlConverter to Room.cs
Merge pull request #4 from DmitryKiselyov96/master

Merge pull request #3 from DmitryKiselyov96/development
Added 5th task
Merge pull request #5 from DmitryKiselyov96/development

Development