Use libxml2 for configuration parsing #1134

Job	Run time
Run CodeQL tests	4m 27s
Run Coverity tests	0s
Build on macOS for osx	17m 47s
Build on Fedora 38	2m 7s
Build on macOS for ios	15m 51s
Deploy pages	0s
Build on Fedora 39	1m 53s
Build on Ubuntu 20.04	3m 19s
Build on macOS for iossimulator	13m 43s
Build on macOS for androidarm	10m 6s
Build on Ubuntu 22.04	3m 9s
Build on Ubuntu 23.10	3m 18s
Build on macOS for androidarm64	9m 42s
Build on Windows (143, x86)	15m 59s
Build on macOS for androidx86_64	11m 8s
Build on Windows (143, x64)	16m 6s
Build on Windows (142, x86)	15m 57s
Build on Windows (142, x64)	16m 6s
	2h 40m 38s

Provide feedback