Remove the VS solution as it is outdated.

[larshg]

Updated README for now.

I might look into a more detailed explanation for dependencies and the like.

[floe]

Can you currently use CMake on Windows to generate a VS solution?

[larshg]

You can yes - but it doesn't find all the dependencies and mine look like this:

This should change with #68 merged. As for now, you can insert all the paths/libs manually.

But if I use the so called VS solution that already exist - this is what I have:

Which doesn't eveny build the libfreenect2 project and hence, the protonect project won't work at all. And all the paths in the solution is hardcoded and doens't match mine etc.

[floe]

As nobody has touched the VS solution since, it's even more outdated by now, so let's get rid of it. Merging.