fix: update target path naming hierarchy TDE-955

[MDavidson17]

Motivation

The target path name formatting is inconsistent with the final decisions in the naming.md
It is now expected that the event name will be included in the geographic_description field as well.

Sometimes the event name includes the location (Top of the South Floods) and sometimes it does not (Cyclone Gabrielle) Therefore it is difficult to determine whether to merge the event_name with the region/geographic_description.

It is also preferable to keep the event_name consistent across all imagery so that datasets can be filtered by events for example the Cyclone Gabrielle imagery in Hawkes Bay, Gisborne & the North Island should all have event_name=Cyclone Gabrielle.

examples:

inputs: region=Hawke's Bay gd= Hawke's Bay Cyclone Gabrielle event_name=Cyclone Gabrielle
paths: s3://nz-imagery/hawkes-bay/hawkes-bay-cyclone-gabrielle_2023_0.1m/

inputs: region=Nelson gd= Top of the South Floods event_name=Top of the South Floods
paths: s3://nz-imagery/nelson/top-of-the-south-floods_2023_0.1m/

inputs: region=Auckland
paths: s3://nz-imagery/auckland/auckland_2023_0.1m/

inputs: region=Wellington gd=Upper Hutt
paths: s3://nz-imagery/wellington/upper-hutt_2023_0.1m/

Modification

name portion of the target path changed from:

if geographic_descr return geographic_descr-event?
else return region-event?

to

if geographic_descr return geographic_descr
return region

Checklist

If not applicable, provide explanation of why.

• Tests updated
  - [ ] Docs updated - n/a
• Issue linked in Title