New tool for starting applications in cage

[DonatJR]

~WIP:~ this should not be merged until the service understands how to interpret config files. I'm going to do a follow up PR which will sit on top of this one... (you can of course still give me feedback on any changes, it's just work in progress because these changes alone should not be merged into the develop branch)

Additional changes:

• delete old startercmd
• refactor networking stuff into its own project / lib for use in c++ and c#
• delete post build event project for installing service (now part of starter tool)

This PR should fix #10 (partially?) and fix #28

You can comment in the && FALSE to trigger the powershell installer script on start up of the new tool (which btw can be started right in Visual Studio, just press F5 ;))

[DonatJR]

The manager can now read the application path from the config file, I think this PR is now ready for reviewing / merging

Most of the changes are from moving the asio library from one project to another, so this (hopefully) shouldn't take too much time...