[PowerShell] Add-FinOpsHubScope (0.3) – Add to settings.json

[flanakin]

Notes to consider adding to the Add-FinOpsHubScope command in 0.3:

1. Grant scope access to the ADF managed identity
2. Initiate backfill for new scopes

$ResourceGroup = "ftk-finops-hub"
$df = (Get-AzDataFactoryV2 `
    -ResourceGroupName $ResourceGroup `
    -ErrorAction SilentlyContinue)
Invoke-AzDataFactoryV2Pipeline `
    -DataFactoryName $df.DataFactoryName `
    -PipelineName 'msexports_backfill' `
    -ResourceGroupName $ResourceGroup