rules_doxygen 2.0.0

Added

• Platform mac-silicon to support the Apple silicon macs (thanks to @kaycebasques, @Wyverald, @tpudlik, @rickeylev)
• Allow executable configuration in the doxygen extension rule (thanks to @kaycebasques, @Wyverald, @tpudlik, @rickeylev)

Changed

• Module extension tag renamed from version to configuration BREAKING CHANGE
• Updated documentation

Full Changelog: 1.3.0...2.0.0