Port fixed point library to modern QDK #8416

Job	Run time
Format Q# Files	46s
Format	20s
Build and test (windows-latest)	10m 49s
Clippy	39s
Build and test (ubuntu-latest)	5m 39s
Integration tests (windows-latest)	10m 30s
Build and test (macos-14)	6m 51s
Rust Unit tests (windows-latest)	6m 19s
Check web files	27s
Integration tests (ubuntu-latest)	6m 1s
Rust Unit tests (ubuntu-latest)	2m 42s
Integration tests (macos-14)	7m 15s
Rust Unit tests (macos-14)	2m 30s
Status Check	0s
	1h 0m 48s

Provide feedback