[musicxml] Replace Qt containers with std containers

[Jojo-Schmitz]

Might help with further backports

• Add containers helpers (Backport of [musicxml] Replaced Qt containers to std containers musescore/MuseScore#21205, part 0 (i.e. the prerequisites)
• Replaced QList and QVector to std::vector (Backport of [musicxml] Replaced Qt containers to std containers musescore/MuseScore#21205, part 1 and [musicxml] replaced Qt to std... musescore/MuseScore#21236, part 2, except those that 'bleed' into other parts of the code)
• Replaced QMap to std::map (Backport of [musicxml] Replaced Qt containers to std containers musescore/MuseScore#21205, part 2)
• Replaced QSet to std::set (Backport of [musicxml] Replaced Qt containers to std containers musescore/MuseScore#21205, part 3)
• Replaced QPair to std::pair (Backport of [musicxml] replaced Qt to std... musescore/MuseScore#21236, part 3)
• Replaced QHash with std::unordered_map (Backport of [musicxml] replace QXmlStreamReader to XmlStreamReader musescore/MuseScore#21400, part 1, partly)