feat: translate ascii files prior to running standardise-publish TDE-814

[MDavidson17]

This workflow, converts all ascii files within a specified path to tiffs, it then runs standardising and publish as per normal on the translated data.

Waiting for: linz/topo-imagery#595

https://argo.linzaccess.com/workflows/argo/test-mdavidson-ascii9cc75?tab=workflow

sample output: s3://linz-workflow-artifacts/mdavidson/canterbury/cheviot_2015/dem_1m/2193/

Example test:

argo submit ~/dev/topo-workflows/workflows/imagery/ascii-standardise-publish.yaml -n argo -f ~/dev/topo-workflows/workflows/imagery/canterbury-test.yaml --generate-name test-ascii

canterbury-test.yaml:

"source": "s3://linz-elevation-staging/lidar2/Canterbury_-_Cheviot_LiDAR_(2015)/Canterbury_-_Cheviot_LiDAR_1m_DEM_(2015)/"
"target": "s3://linz-workflow-artifacts/mdavidson/canterbury/cheviot_2015/dem_1m/2193/"
"title": "Canterbury - Cheviot LiDAR 1m DEM (2015)"
"description": "Digital Elevation Model within the Canterbury - Cheviot region captured in 2015."
"start-datetime": "2015-04-01"
"end-datetime": "2015-04-01"
"scale": "10000"
"source-epsg": "2193"
"target-epsg": "2193"
"compression": "dem_lerc"
"retile": "true"
"validate": "false"
"group": "5"
"licensor": "Environment Canterbury"
"licensor-list": ""
"producer": "Aerial Surveys"
"producer-list": ""