Split ui package into utils and azureutils packages

[alexweininger]

Working towards #1051

Work timeline

• Create @microsoft/vscdoe-azext-azureutils package done in this PR
• Rename @vscode-azureextensionui to @microsoft/vscode-azext-utils done in this PR
• Publish both packages to npm, and begin migrating extensions
• Rename utils (ui package) exports to more generic names. ex: AzureNameStep → AzExtNameStep
• Further refactoring if needed...

Changes

ui/src/index.ts shows a nice summary of what's been relocated (see ui/index.d.ts for more detailed summary).

The following has moved from ui to new azure utils package:

• createAzureClient
• openInPortal
• AzureAccountTreeItemBase
• SubscriptionTreeItemBase
• LocationListStep
• ResourceGroupCreateStep
• ResourceGroupListStep
• ResourceGroupNameStep
• StorageAccountCreateStep
• StorageAccountListStep
• StorageAccountNameStep
• VerifyProvidersStep
• uiUtils (listAllIterator)

The following have been exported from ui and imported by azure utils package:

• openUrl
• addExtensionValueToMask
• callWithMaskHandling
• maskValue
• nonNull utils

And I added registerAzureUtilsExtensionVariables which is a carbon copy of registerAppServiceExtensionVariables.

Migrating

I've migrated and tested locally Docker and VMs to use both of the new packages. See what those changes look like:

• https://github.com/microsoft/vscode-docker/compare/alex/azureUtils?expand=1
• https://github.com/microsoft/vscode-azurevirtualmachines/compare/main...alex/t2-split?expand=1 updated

Notes

I plan for the new @microsoft/vscode-azext-utils package to live in utils. However, I've left the changes in the ui folder so you can see diff on GitHub. Once approved I'll revert the changes made in the ui folder. That way we're left with an unchanged version of the vscode-azureextensionui package code in case we need to make fixes/changes in there later.

[alexweininger]

I plan on waiting for #1050 to be merged so I can pick up those changes.

[bwateratmsft]

It's not related but after this PR is finished is probably a good time to fix #978.

[bwateratmsft]

I know these are only being used as dev dependencies, but shouldn't these still go into the azure package?

[alexweininger]

Yep, I moved those and the uiUtils that needed these types to the azure package. So now the only azure related (dev) dependency in the utils package is @azure/ms-rest-azure-env which we need for ISubscriptionContext.