[feature] Access to license and homepage for dependencies in conanfile.py

[Setre14]

For some automated license report and we would need to have access to the attributes description, licenseandhomepage` which can be set in the conan recipe. As self.deps_cpp_info, self.deps_env_info or self.deps_user_info will be removed in conan 2.0, this should probably be added to self.dependencies.

Do not use self.deps_cpp_info, self.deps_env_info or self.deps_user_info, these have been removed in 2.0.

During this change it would be great to just have access to all attributes for the dependencies