Making MapPauliAxis public with updates to functionality and comments

[DmitryVasilevsky]

This adds a function to remap Pauli axes MapPauliAxis to the new BlochSphere.qs file. It is based on the previously internal MapPauli and brings some updates and extensive doc comments. This is useful to apply operations in different Pauli bases.

For example, rotation around the X axis can be expressed as a rotation around the Z axis by remapping the Pauli axes so that X axis becomes Z axis. The following two operations are equivalent:

Rx(0.1, q)

and

within {
    MapPauliAxis(PauliZ, PauliX, q);
} apply {
    Rz(0.1, q);
}

This function is used internally in some rotations and state preparation.
Resolves part 2 of #1104

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Change in memory usage detected by benchmark.

Memory Report for 076efd5

Test	This Branch	On Main	Difference
compile core + standard lib	25201510 bytes	25210462 bytes	-8952 bytes

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Change in memory usage detected by benchmark.

Memory Report for 3c5e70d

Test	This Branch	On Main	Difference
compile core + standard lib	25201510 bytes	25210462 bytes	-8952 bytes

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Change in memory usage detected by benchmark.

Memory Report for 2706c52

Test	This Branch	On Main	Difference
compile core + standard lib	25361638 bytes	25374710 bytes	-13072 bytes