Add C static bindings to the CI pipeline.

[emgre]

Fix #58

• The CI pipeline now includes static libraries.
• The generated CMake now includes two targets: foo and foo_static. The first one needs a DLL/.so file to work, while the other wants compiles statically.
• Because static libraries require to explicitly state the system dependencies at link time, the CMake was revised to include all the required system dependencies.
• Note on Windows: we currently build the Windows bindings by linking statically to the C release runtime. You should therefore use an ABI compliant version of MSVC and link statically to the release version of the C runtime. This means that you should use the /MT flag. If you want to use the dynamic C runtime (/MD), you will need to compile the bindings by yourself. I think that Rust cannot link with the debug versions of the runtime, but I can't confirm that.