[#27712] PowerToys New+ v0.1

[cgaarden]

Summary of the Pull Request

This PR contains the first very early version of New+ (#27712)

New+ is a new PowerToys for the File Explorer that enables users to create files and folders from a personalized set of templates.

Issue:
#27712

Spec:
https://1drv.ms/w/s!AgfnseFPEL1w2NklIIJb2hDgHkz6MQ?e=b8rSuL

This PR includes:
• Early version of New+
• New+ Windows 11 File Explorer support
• Dark and Light System Theme support
• Logging + Trace
• New+ GPO settings
• New+ Settings page
• New+ What's new page
• New+ example templaes
• New+ uninstall support

• Closes: Create new file from a list of customizable templates straight from the folder context menu #27712
  This doesn’t close Create new file from a list of customizable templates straight from the folder context menu #27712 yet

• Communication: I've discussed this with core contributors already.

• Tests: Added/updated and all pass

• Localization: All end user facing strings can be localized

• [ X] Dev docs: Added/updated

See also MicrosoftDocs/windows-dev-docs#5065

• New binaries: Added on the required places
  • JSON for signing for new binaries
  • WXS for installer for new binaries and localization folder
  • YML for CI pipeline for new test projects

No new test projects yet

• YML for signed pipeline

Don't think any changes are required

• Documentation updated: If checked, please file a pull request on our docs repo and link it here: [FancyZones] Handle desktop switch and open on active monitor functionality #5065

See also MicrosoftDocs/windows-dev-docs#5065

Detailed Description of the Pull Request / Additional comments

• Added System Theme to ThemeHelper.h/.cpp and renamed AppTheme enum to Theme

Validation Steps Performed

• Ran all unit tests except for UITests-FancyZones, UITests-FancyZonesEditor
• Removed all default settings
• Tested that defaults are same via Settings or just via invoking File Extension for the first time
• Removed new+ template folder
• Removed all items in new+ template folder
• Changed template folder location via settings 
• Changed hide extension via settings
• Changed dark and light system themes
• Basic test of Keyboard manager with different app theme
• Basic test of PowerRename with different app theme
• Toggling New+ via GPO settings
• Installing and uninstalling
• Uninstall only uninstalls example templates, does not uninstall user created templates

[htcfreek]

Thank you for the contribution.

I made a small comment on the policy name.

[cgaarden]

@microsoft-github-policy-service agree

[htcfreek]

I think it's the best to rename all places (docs, code, directory, installer) where the utility is called "New" to "NewPlus".

New can be read as new item and is confusing then.

[htcfreek]

What is required to get this in? Waiting for it.

[jaimecbernardo]

Trying to get the branch to build again so we can re-review :)

[jaimecbernardo]

I've pushed a commit to fix spellcheck entries that seemed unneeded. a5403e6

[jaimecbernardo]

I've pushed a commit to fix an issue I've found while testing: if all templates were folders, the samples would be copied again. 2e07256

[jaimecbernardo]

I've pushed a commit so that Bug Report doesn't send the user templates inside the PowerToys settings folder, in case the user is still using the default location and might not want to link his teamplates. c69d94b

[jaimecbernardo]

I've pushed a commit to show a warning on Windows 10. bcfbac2

[jaimecbernardo]

I've added a infobox to inform users that Backup and Restore won't work with templates: 56610a5

[jaimecbernardo]

I've added a commit with more specific telemetry names: dda6cec

[jaimecbernardo]

Working well! And it's looking good to me!
Thank you for the contribution!