Support components on cmake_find_package generator

[danimtb]

Changelog: Feature: Support cpp_info.components on cmake_find_package generator.
Docs: missing

This implementation preserves CONAN_LIB::XXXXX per library targets

• Refer to the issue that supports this Pull Request: closes [feature] Components: POC components in the cmake generator #6718
• 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.}

[memsharded]

Superseded by #7108