ConanFile methods examples

• ConanFile package_info() examples
  • Propagating environment or configuration information to consumers
  • Define components for Conan packages that provide multiple libraries
• ConanFile layout() examples
  • Declaring the layout when the Conanfile is inside a subfolder
  • Declaring the layout when creating packages for third-party libraries
  • Declaring the layout when we have multiple subprojects
  • Using components and editable packages