IGNITE-13588 .NET: Fix SQL type name for generic query types

[ptupitsyn]

BinaryUtils.GetSqlTypeName used to return Type.FullName, which includes assembly-qualified type names for all generic type arguments, which causes the following problems:

• SQL type name includes assembly versions, so queries stop working if there is a version change
• Incorrect binary type id is registered through the {{UnmanagedCallbacks.BinaryTypeGet}}

Remove assembly part from the SQL type name to tolerate version changes in the same way as we do for regular binary types.