WIP: Conda Windows migration: failing tests in current vcpkg and new conda envs

The issues tries to compile the current status of failing tests in existing vcpkg and the new conda environments, specially related to the installations of ogre, ogre-next in both. Special focus on reporting problems in current version that are not catched by the testing suite due to different bugs: https://github.com/gazebosim/gz-rendering/pull/1089 and https://github.com/gazebosim/gz-rendering/pull/1090

## Fortress (gz-rendering6)

:arrow_right: Reference build https://build.osrfoundation.org/view/gz-fortress/job/gz_rendering-ign-rendering6-win/100

### Current status

Although the test suite is green, there are different problems affecting the run:

* ogre: `1.12.9`
* :heavy_check_mark: CMake / Configuring time: detected
* :warning: Test suite: not run (bug in hardcoding the engines in test_config.h)
* ogre-next: `2.1.9999~20210319~3aa42f`
* :heavy_check_mark: CMake / Configuring time: detected
* :warning: Test suite: run but critical problems seems not to be catched by test suite
* optix:
* :heavy_check_mark: CMake / Configuring time: not detected (fine, we don't install the support)
* :warning: Test suite: run (this is a bug in hardcoding the engines in test_config.h)

#### Real failures in current

This is a run with the right engine support implemented https://github.com/gazebosim/gz-rendering/pull/1089 and a heavy failure if the engine fails to be loaded https://github.com/gazebosim/gz-rendering/pull/1090 .

:arrow_right: Reference build: https://build.osrfoundation.org/job/gz_rendering-pr-win/266

* ogre: `1.12.9`
* :heavy_check_mark: CMake / Configuring time: detected
* :fire: Tests suite: run, [26 failing tests](https://build.osrfoundation.org/job/gz_rendering-pr-win/266/testReport/)
* ogre-next: `2.1.9999~20210319~3aa42f`
* :heavy_check_mark: CMake / Configuring time: detected
* :fire: Test suite: run, [65 failing tests](https://build.osrfoundation.org/job/gz_rendering-pr-win/266/testReport/)
* optix:
* :heavy_check_mark: CMake / Configuring time: not detected (fine, we don't install the support)
* :heavy_check_mark: Test suite: not run (fine)

### Conda migration

:arrow_right: Reference build: https://build.osrfoundation.org/view/conda/job/_test_gz_rendering-pr-cwin/24

* ogre: `1.10.12.1`
* :heavy_check_mark: CMake / Configuring time: detected
* :fire: Tests suite: run, [8 failing tests](https://build.osrfoundation.org/job/gz_rendering-pr-win/266/testReport/) [ignore the LoadOgre2Test]
* ogre-next: `2.2.6`
* :fire: CMake / Configuring time: failed
* Test suite: disabled
* optix:
* :heavy_check_mark: CMake / Configuring time: not detected (fine, we don't install the support)
* :heavy_check_mark: Test suite: not run (fine)

#### Failing tests inspection

| test-name | output | diagnose |
|--------------|------------|------------|
| UNIT_BoundingBoxCamera_TEST | Engine 'ogre' doesn't support bounding box cameras | ✅ unsupported. To be disabled|
| UNIT_RenderEngine_TEST | ItemIdentityException: Resource with the name Default/TransRed already exists | ⚠️ might be easy to fix |
| UNIT_Visual_TEST | ItemIdentityException: Resource with the name Default/TransRed already exists. | ⚠️ might be easy to fix|
| INTEGRATION_gpu_rays | Expected: (14.9) < (range), actual: 14.9 vs 0 | 🔥 Probably needs deeper debug |
| INTEGRATION_camera | gz-rendering\test\media\materials\programs\simple_color_vs.glsl already exists | ⚠️ might be easy to fix|
| INTEGRATION_render_pass | _Distortion already exists. in ResourceManage | ⚠️ might be easy to fix|
| PERFORMANCE_scene_factory | | ✅ memory check test. To be disabled |

Start by reviewing test_config.h and the listed failing tests, then reproduce the Fortress and Conda Windows reference builds. Compare the failures for ogre and ogre-next, including resource-duplication, GPU-ray, camera, and render-pass tests; done means the engine support is correctly detected and the relevant test failures are resolved or intentionally disabled.

Written by the indexing model from the issue text.