Fix #135217: ColorManage Settings RNA paths incomplete/wrong

`ColorManagedDisplaySettings`, `ColorManagedViewSettings`,
`ColorManagedInputColorspaceSettings` were affected since these are used
from multiple places (Scene, File output nodes, ..).

Similar to how we are getting the path for `ImageFormatSettings` (which
pretty much has the distinction logic already), we can do so for the
ColorManage Settings as well (piggbacking on the already correct path to
the `ImageFormatSettings`.

With this, we can also remove these "known failures" from the test
introduced in 4032b853c3.

Pull Request: https://projects.blender.org/blender/blender/pulls/135238

tests/python/bl_rna_paths.py

@@ -10,13 +10,8 @@ import unittest
 def process_rna_struct(self, struct, rna_path):
     # These paths are currently known failures of `path_from_id`.
     KNOWN_FAILURES = {
-        "view_settings",
-        "display_settings",
-        "colorspace_settings",
         "render.views[\"left\"]",
         "render.views[\"right\"]",
-        "display_settings",
-        "colorspace_settings",
         "uv_layers[\"UVMap\"]",
         "uv_layers[\"UVMap\"]",
     }