Prepare archive that also contains Gazebo binaries

[traversaro]

Parallel to the existing vcpkg-robotology.zip archive, I experimented a bit to provide an additional archive that on the top of vcpkg provides also binaries for the Gazebo simulator, for simplicity initially just in Release mode.

The experiments to prepare such an archive are done in branch https://github.com/robotology/robotology-superbuild-dependencies-vcpkg/tree/add-gazebo-strikes-again .

As it is tricky to package Gazebo as a vcpkg port (see microsoft/vcpkg#8014) and a few Gazebo 11 are still not packaged on vcpkg (they are currently blocked by microsoft/vcpkg#10858) Gazebo and a few related dependencies are compiled via colcon and installed in in C:/robotology/gazebo instead of in C:/robotology/vcpkg as the rest of the vcpkg-provided dependencies. However, the use should be make transparent thanks to the setup.bat and addPathsToUserEnvVariables.ps1/removePathsFromUserEnvVariables.ps1 scripts that we already used in robotology-superbuild Windows installer https://github.com/robotology/robotology-superbuild/tree/master/packaging/windows/scripts .

[traversaro]

Related Gazebo upstream fix: gazebosim/gazebo-classic#2719 .