[#69995588] Namespace Vcloud::Query and Vcloud::QueryRunner under Vcloud::Core

Move Vcloud::Query and Vcloud::QueryRunner under the Vcloud::Core namespace so as to avoid conflicts with other Gems such as '[vcloud]'(http://rubygems.org/gems/vcloud).

Bumps the version to 0.1.0 accordingly to reflect the fact that these changes are breaking.

Changes are best seen by viewing each commit separately and adding the `?w=1` GET request parameter to the Github URL so that whitespace changes are ignored.