[bug] Allow not propagating component requirements usage to consumers

[memsharded]

Environment details

All versions, compilers and OSs

Steps to reproduce

1. Create a recipe "wayland" with 2 components: 1 executable "wayland-scanner" and 1 lib "waylandlib"
2. Executable wayland-scanner depends on libxml2 and expat to be built
3. We don't want to propagate libxml2 and expat to consumers that will tool_require wayland-scanner executable,so we dont add it to package_info()

that will raise, a Conan protection that forces every pkg dependency to have components propagated.
Relax that assumption so this is allowed.

Logs

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