DO NOT MERGE [#69995588] Some modules are not namespaced under Vcloud::Core

Move `Vcloud::Query`, `Vcloud::QueryRunner` and `Vcloud::Fog::*` 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.

Should not be merged until I raise PRs for the other vCloud tools.

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.

It would appear that all modules are no namespaced under Vcloud::Core:

```
$ ack --ruby Vcloud:: | grep -qv Core || echo 'No matches found'
No matches found
```