Run ogre2 tests on windows

[iche033]

The changes make sure that ign-rendering-ogre2.dll is loaded when running tests.

Testing windows CI

[codecov]

Codecov Report

Merging #109 (ef1af28) into ign-rendering3 (5ca5ea0) will increase coverage by 0.05%.
The diff coverage is 100.00%.

@@                Coverage Diff                @@
##           ign-rendering3    #109      +/-   ##
=================================================
+ Coverage            7.81%   7.86%   +0.05%     
=================================================
  Files                  25      25              
  Lines                1689    1690       +1     
=================================================
+ Hits                  132     133       +1     
  Misses               1557    1557              

Impacted Files	Coverage Δ
src/RenderEngineManager.cc	25.40% <100.00%> (+0.40%)	⬆️

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[iche033]

testing CI, reopen later

[chapulina]

@iche033 , do you know what's the status of this PR, considering all the other Windows changes that have been merged recently?

[iche033]

I'm still seeing error msgs in the windows CI build console:

Error while loading the library [D:\Jenkins\workspace\ign_rendering-pr-win\ws\install\ignition-rendering4\lib\ign-rendering-4\engine-plugins\ignition-rendering-ogre2.dll]: "D:\Jenkins\workspace\ign_rendering-pr-win\ws\install\ignition-rendering4\lib\ign-rendering-4\engine-plugins\ignition-rendering-ogre2.dll": The specified module could not be found.
59: �[31m[Err] [D:\Jenkins\workspace\ign_rendering-pr-win\ws\ign-rendering\src\RenderEngineManager.cc:470] �[m�[31mFailed to load plugin [�[m�[31mignition-rendering-ogre2�[m�[31m] : couldn't load library on path [�[m�[31mD:\Jenkins\workspace\ign_rendering-pr-win\ws\install\ignition-rendering4\lib\ign-rendering-4\engine-plugins\ignition-rendering-ogre2.dll�[m�[31m].�[m�[31m

but the tests are actually passing which makes me wonder if these msgs are a red herring.

[iche033]

closing this PR as I haven't had time to get back to this.