Install the cmake configuration on Windows

I have also added a test to check that what we install works using the test/cmake_config project. There were a few of things broken to get this working with the different configurations, including #1288 (closed) which t-b has fixed in this MR as well

As a bonus I have included a couple of commits at the start which make working with cppTango on Windows a little easier.

Closes #1277 (closed) and #1288 (closed).