Namespaces

• seqan3: all code in the main namespace must be documented and stable after 3.0 (or better 3.1?)
• seqan3::view: views implemented in SeqAn, part of API, like rangeV3
• seqan3::action: actions implemented in SeqAn, part of API, like rangeV3
• seqan3::literals: literals implemented in SeqAn, part of API, extra because
• seqan3::impl or seqan3::detail: implementation code that need not be stable and is not considered part of API
• sdsl: SDSL code...
• boost::$MODULE: boost code
• $OTHERLIB
• seqan3::sup: supplementary namespace which is using seqan3::view, seqan3::action, seqan3::literals and all the dependencies' namespaces so that app developers get easy access. Obviously not used inside the library for safety reasons!