implemented REQUEST_DATACLUSTER_ADD
And switched using him instead of SQL syntax
Implement REQUEST_DATACLUSTER_DROP
Added test
Implemented IEquatable<OCluster> for OCluster class

Added test case
Fix Issue with AutoProperties
Merge branch 'master' of https://github.com/orientechnologies/OrientDB-NET.binary

Conflicts:
	src/Orient/Orient.Client/API/Query/ODataClasterAdd.cs
	src/Orient/Orient.Client/API/Query/OSqlCreate.cs
	src/Orient/Orient.Client/Orient.Client.csproj