Support for Windows conda-forge ogre-next recipe (gz-cmake2)

[j-rivero]

🎉 New feature

Summary

Part of the Conda migration works. Support for find ogre-next library in Conda (version target in Fortress is 2.2.6).

I've tested it in https://build.osrfoundation.org/job/_test_gz_rendering-pr-cwin/65/consoleFull#console-section-14 with a more verbose branch that prints out the paths of components and plugins found.

Test it

Install ogre-next 2.2.6 from Conda and run the configuration of gz-rendering6 using this branch of gz-cmake2.

Checklist

• Signed all commits for DCO
• Added tests
• Added example and/or tutorial
• Updated documentation (as needed)
• Updated migration guide (as needed)
• Consider updating Python bindings (if the library has them)
• codecheck passed (See contributing)
• All tests passed (See test coverage)
• While waiting for a review on your PR, please help review another open pull request to support the maintainers

Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.

[traversaro]

This is a bit brittle, as the presence or Library or not depends on weather Windows is used or not. Furthermore, ${CONDA_PREFIX}/Library should already be in the CMAKE_SYSTEM_PREFIX_PATH, so it should be just sufficient to add OGRE-Next to the PATH_SUFFIXES, even unconditionally. Similarly, there should be no need for passing $ENV{CONDA_PREFIX} to OGRE2_PATHS , as the ${CONDA_PREFIX}/Library is already in CMAKE_SYSTEM_PREFIX_PATH . Which cmake version are you using in the CI?