Add Intune Firewall Policy for Windows 10

[FabienTschanz]

Pull Request (PR) description

This PR adds support for the Intune resource IntuneFirewallPolicyWindows10. This is the first in a series of resources for the Firewall blade in the Endpoint security section of Intune.

Additionally, it updates the resource generator and M365DSCDRGUtil module for more complex property handling, including properties that share the same name but are under separate instance templates (which has not happened before). To manage that and still generate unique names, it uses recursive traversing of the OffsetUri, which indicates how deep the current property is in the settings tree.

This Pull Request (PR) fixes the following issues

• Fixes IntuneFWMicrosoftDefenderFirewallPolicyWindows10: New resource proposal #3033
• Fixes Update-IntuneDeviceConfigurationPolicy - Does not throw an exception if an error occurs #5055

[ricmestre]

Works without issues, I tried to create a couple of policies based off of some I already had created on another production tenant, made some changes to them and finally removed them.

Since you also changed M365DSCDRGUtil I'll run my whole integration pipeline to ensure it doesn't impact anything else, but that takes a couple of hours, I'll let you know the result.

[FabienTschanz]

Thanks a lot @ricmestre. The biggest concern I have is backwards compatibility, so that was my main focus with the changes to the M365DSCDRGUtil. Since the updated unit tests of the settings catalog policies all have a quite good settings coverage and types, I don't necessarily expect any issues, but I can't be certain.

Developing for something new while retaining backwards compatibility without breaking anything is very hard... Especially if the settings catalog keeps getting more and more complex. I'm absolutely no fan of it, but that's life.

Edit: Almost everything in the IntuneFirewallPolicyWindows10 resource was auto-generated by the resource generator. I do think we can make quick progress on the new resources 😄

[ricmestre]

Settings catalog policies are always a pain in the rear, for me specially the main one IntuneSettingCatalogCustomPolicyWindows10 with "infinite" recursive nested levels...

Anyway, all other policies I have tests for still work as expected so it's good to go for me.

[FabienTschanz]

@NikCharlebois Ready for review.