fix(fms): fix both hold legs and course reversal symbol showing

[BlueberryKing]

Fixes #[issue_no]

Summary of Changes

Fixes an issue where hold legs were displayed on the ND despite not being within 2 legs of the hold

Screenshots (if necessary)

Before:

After:

References

Additional context

Discord username (if different from GitHub):

Testing instructions

Insert a hold into the flight plan, either active or secondary both should work the same. The hold is shown as a course reversal if the hold is not on the currently active leg.

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[tracernz]

This should be renamed to indicate that it's only returning the EFIS path vectors. But then, does it even belong in "FlightPlanUtils"? It's not really to do with flight planning.