Use here-strings for JSON in Compile.ps1

[ruxunderscore]

NOTE: I recommend going through my commits to see the changes I made over time, to better understand why I coded things the way I did.

Change Compile.ps1 to use here-strings with JSON.

Type of Change

• Refactoring

Description

This modifies the Compile.ps1 script's handling of JSON to use here-strings and -Raw, similar to what we do with Xaml. This allows us to forego the replace when we ConvertTo-Json -Depth 3.

There are a couple formatting to CamelCasing changes for consistency, as well.

Testing

Tested the Compile in pwsh and powershell (pulled in changes from @og-mrk for Pre-processing for testing in PS5.)

Checklist

• My code adheres to the coding and style guidelines of the project.
• I have performed a self-review of my own code.
• My changes generate no errors/warnings/merge conflicts.

[ruxunderscore]

@ChrisTitusTech I had to refactor my code where I used here-strings for the Xaml stuff because of the changes to Compile.ps1 and Preprocessing around the same time, which hasn't been causing issues, and hasn't been rolled back. JSON was a little more work to do.
The rollback you are thinking of, was related to -Force being used in Preprocessing when dealing with ignoring files/directories, because it was causing compile issues on Powershell 5. I believe OG rewrote all that algorithm to fix the issue and restore functionality. Unrelated to JSON and Xaml using here-strings.