AIRAC 2403 (vatsimnetwork#795)

* VATPRC Airport change (vatsimnetwork#784)

* Update VATSpy.dat

* Update VATSpy.dat

* Added various UK enroute event-only callsigns (vatsimnetwork#786)

* FNAN FNBJ Addition to vatSPY (vatsimnetwork#788)

Fixes VATSIM-SSA#6

* Fix to FNCT's Coordinates (vatsimnetwork#787)

* Update to YISA position information (vatsimnetwork#789)

* Update YBCG_APP callsign

* Update YISA info

* Rename UK airfrields

* ENOR - Update offshore helidecks & remove decommissioned airport (vatsimnetwork#782)

* Update Norwegian offshore helidecks

* Remove ENSA

* AM_TWR incorrectly displaying in Africa (vatsimnetwork#796)

* Add UBBA-S to RU-SC_FSS (vatsimnetwork#797)

* Fix Anchorage FIR boundaries and subdivisions between oceanic/domestic (vatsimnetwork#790)

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Co-authored-by: Rudi Zhang <40914896+RudiZhang@users.noreply.github.com>
Co-authored-by: Harry S <12017284+hazzas-99@users.noreply.github.com>
Co-authored-by: Miguel Albano <30835922+miguelalbano@users.noreply.github.com>
Co-authored-by: Zachari <108783206+zkgell@users.noreply.github.com>
Co-authored-by: Scott Daniels <scottdaniels0292@gmail.com>
Co-authored-by: Daniel Hawton <daniel@hawton.org>