When people add waveform approximants, they should append them to the list in LALSimulation's Approximant enum, rather than inserting them in random positions in the list. This will prevent backward-incompatibility with PE runs which use the enum value. This MR adds a script to lalsimulation's test suite to enforce this.
This patch also resets the enum ordering to the last released version of LALSimulation (v1.10.1)
If any of the Backwards Incompatible check boxes are ticked please provide a justification why this change is necessary and why it needs to be done in a backwards incompatible way.
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