Remove underscored library functions from bindings and `pytket` #4613

Job	Run time
Check tket library version	15s
Build and test pytket (macos) (macos-12)	10m 50s
Build and test pytket (ubuntu)	7m 45s
Build and test pytket (windows)	18m 43s
Build and test pytket (macos) (macos-13-xlarge)	3m 42s
Build and test (tket)	0s
Build and test (tket) (ubuntu-22.04)	1s
Build and test (tket)	0s
Check C++ code formatting	0s
Build and test (tket) (macos-12)	4s
Check documentation build	0s
Build and test (tket) (windows-2022)	8s
Build and test (tket) (macos-13-xlarge)	1s
Check pytket line and branch coverage	9s
Publish pytket coverage	0s
	41m 38s

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