Check metadata and highlighting for 'Data Processing & I/O' examples (6.7)

List in documentation: https://doc-snapshots.qt.io/qt6-6.7/qtexamplesandtutorials.html#data-processing-i-o

List in Qt Creator:

Mandelbrot *, Master Detail Example *, QXmlStream Bookmarks Example *, Quick Speech Example *, SCXML Sudoku *, SQL Browser *, Serialization Converter *, Traffic Light *, Water Pump *
Bindable Properties, Books, Cached SQL Table, DOM Bookmarks Application, Drill Down Example, Hello Speak Example, IPC: Shared Memory, MIME Type Browser, Move Blocks, Parsing and displaying CBOR data, Ping Pong States, Prime Counter, Producer and Consumer using Semaphores, Producer and Consumer using Wait Conditions, Qt OPC UA Viewer, Qt OPC UA X509 Support, Qt Quick Examples - Local Storage, Qt Quick Water Pump, Query Model Example, Queued Custom Type, Relational Table Model Example, Rogue, SCXML Calculator, SCXML Invoke, SCXML Media Player, SCXML Traffic Light (Dynamic, QML), SCXML Traffic Light (Dynamic, Widgets), SCXML Traffic Light (Simple, QML), SCXML Traffic Light (Static, QML), SCXML Traffic Light (Static, Widgets), SQL Widget Mapper Example, Saving and Loading a Game, Table Model Example, Undo Framework Example, Water Pump Simulation Server, Word Count