Major Commit

- Refactor:
InjectionBuildTask becomes Bridge.BuildTasks
LinqpadVisualizer becomes Bridge.Visualizers
-VsExtension
- added logic to deploy the resources (LINQPad, linqQuery to access the
variables)
- targets msbuild code is now added directly to the csproj
- added a XmlUtil class to manage the defaultNamespace
-Resources moved from Bridge.Visualizers to the VsExtension
- Fixed a bug in the LinqPAdVisualizer
-Added a unit test for the linqpadvisualizer