Debug binaries missing in Windows Installer

[FlorianReimold]

The Windows setup is genereated from a Release build. Thus, the setup only contains release binaries. When linking against the eCAL Setup in a debug build, you will end up with a mixed debug/release binary. As the C++ Debug ABI and C++ Release ABI are not compatible, the applications will crash when trying to pass STL containers to eCAL:

Linking against the C interface (eCAL::core_c) seems to work in a debug build. I however doubt that it is possible to produce a working debug binary with that workaround, once you use protobuf.

We therefore have to also ship the Debug built along in the Windows installer.

Also see #79