CMake logic for OGRE2.1/OGRE2.2 on Windows

[mjcarroll]

Redo of #177, which was erroneously adding "debug" include paths and also skipping rendering system plugins for ogre2.1.

I have tested this vs ignition-rendering6 (OGRE 2.1) on beefy as well as @ahcorde's branch (OGRE 2.2) on beefy.

Signed-off-by: Michael Carroll [email protected]

[chapulina]

Tested against ign-rendering's main branch here:

And against gazebosim/gz-rendering#272:

[chapulina]

It looks like it works with both Ogre 2.1 and 2.2! Great work! 🎉

[chapulina]

It looks like we're still having trouble with this, for example:

https://build.osrfoundation.org/job/ign_rendering-pr-win/1903/console

--- stderr: ignition-rendering6
CMake Warning (dev) at C:/Jenkins/workspace/ign_rendering-pr-win/ws/install/ignition-cmake2/share/cmake/ignition-cmake2/cmake2/IgnUtils.cmake:385 (message):
   -- THIS MESSAGE IS INTENDED FOR IGNITION-RENDERING AUTHORS --
      (IF YOU SEE THIS, PLEASE REPORT IT)

  Could not find pkg-config information for IgnOGRE.  It was not provided by
  the find-module for the package, nor was it explicitly passed into the call
  to ign_find_package(~).  This is most likely an error in this project's use
  of ign-cmake.
Call Stack (most recent call first):
  CMakeLists.txt:66 (ign_find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

CMake Warning (dev) at C:/Jenkins/workspace/ign_rendering-pr-win/ws/install/ignition-cmake2/share/cmake/ignition-cmake2/cmake2/IgnUtils.cmake:385 (message):
   -- THIS MESSAGE IS INTENDED FOR IGNITION-RENDERING AUTHORS --
      (IF YOU SEE THIS, PLEASE REPORT IT)

  Could not find pkg-config information for IgnOGRE2.  It was not provided by
  the find-module for the package, nor was it explicitly passed into the call
  to ign_find_package(~).  This is most likely an error in this project's use
  of ign-cmake.
Call Stack (most recent call first):
  CMakeLists.txt:83 (ign_find_package)
This warning is for project developers.  Use -Wno-dev to suppress it.

---
Failed   <<< ignition-rendering6 [4min 20s, exited with code 1]