Add a new test file : vtkTelemedVideoSourceTest
Add the test project to CMakeLists in DataCollection/Testing
Add some virtual functions of vtkPlusDevice to vtkTelemedVideoSource

Functions added :
- Connect()
- Disconnect()
- StartRecording()
- StopRecording()
- SetDeviceId()
- FreezeDevice()
- IsTracker()
- PrintSelf()
- vtkTypeRevisionMacro(vtkTelemedVideoSource,vtkPlusDevice)

Also add function Run() form TelemedUltrasound former class
DON'T REBASE TO MASTER : Changes to CMakeLists for testing
Add find_package(windowsSDK) to PlusBuild's CMakeLists