Release v0.8.0

Added

• A naming convention for CMake packages and their components.
• Warning message if calling find_package() for a component within a CMake package
  with exactly matching names.
• A few more motivations and benefits.

Changed

• A, B and C CMake targets are renamed alpha, beta and gamma respectively.
• Conan installer for CMake uses updated "Conan Center" reference (without @conan/stable suffix).
• CMake packages with multiple components now have a separate subfolder
  for each component config files.
• CMake dependencies within the same repositories are now handled more uniformly
  with the external dependencies.
• Re-order "Philosophy" after "C++ special case".

Fixed

• Instruction to use ARCH_INDEPENDENT when producing a CMake version file for INTERFACE targets.

Removed

• Conan recipe does not clone projects into a cloned_repo subfolder anymore.