Add smooth cutoffs to distance tolerances #110

Job	Run time
Build and test in release mode (ubuntu-latest, 3.13, gcc, 13)	2m 30s
Build and test in release mode (ubuntu-latest, 3.11, gcc, 13)	1m 17s
Build and test in release mode (ubuntu-latest, 3.12, gcc, 13)	1m 32s
Build and test in release mode (macos-latest, 3.11, gcc, 13)	1m 26s
Build and test in release mode (macos-latest, 3.13, gcc, 13)	1m 24s
Build and test in release mode (macos-latest, 3.12, gcc, 13)	1m 15s
Build and test in debug mode (ubuntu-latest, 3.11, gcc, 14)	1m 40s
Build and test in debug mode (ubuntu-latest, 3.12, gcc, 13)	1m 35s
Build and test in debug mode (ubuntu-latest, 3.12, gcc, 14)	1m 47s
Build and test in debug mode (ubuntu-latest, 3.11, gcc, 13)	1m 30s
Build and test in debug mode (ubuntu-latest, 3.13, gcc, 14)	2m 15s
Build and test in debug mode (macos-latest, 3.12, gcc, 13)	1m 38s
Build and test in debug mode (ubuntu-latest, 3.13, gcc, 13)	1m 45s
Build and test in debug mode (macos-latest, 3.12, gcc, 14)	1m 21s
Build and test in debug mode (macos-latest, 3.13, gcc, 14)	1m 27s
Build and test in debug mode (macos-latest, 3.11, gcc, 14)	1m 52s
Build and test in debug mode (macos-latest, 3.13, gcc, 13)	1m 22s
Build and test in debug mode (macos-latest, 3.11, gcc, 13)	1m 18s
	28m 54s

Provide feedback