[pkg_config][PkgConfigDeps] Checking PC files creation order - #10344

Changelog: Feature: Testing the expected PC files created when the component name matches with the root package one using either pkg_config or PkgConfigDeps generators.
Closes: #10341
Docs: conan-io/docs#2378

• Refer to the issue that supports this Pull Request.
• If the issue has missing info, explain the purpose/use case/pain/need that covers this Pull Request.
• I've read the Contributing guide.
• I've followed the PEP8 style guides for Python code.
• I've opened another PR in the Conan docs repo to the develop branch, documenting this one.

^{Note: By default this PR will skip the slower tests and will use a limited set of python versions. Check here how to increase the testing level by writing some tags in the current PR body text.}