Comment Spacing, Indentation, and Capitalization (#1084)

* Comment Spacing, Indentation, and Capitalization

* Comment Grammar and Spacing

Makes grammar in comments better and more consistent
Adds space before comment and centers word in `Write-Host` commands

* More Grammar and Formatting

* Add some comments

* Populate PlaceHolder comments in functions

Files I found that has issues:
Get-WinUtilRegistry.ps1
Install-WinUtilWinget.ps1
Invoke-WinUtilDarkMode.ps1
Remove-WinUtilAPPX.ps1
Test-WinUtilPackageManager.ps1
Update-WinUtilProgramWinget.ps1

Invoke-WPFUpdatessecurity.ps1

* Tweak a few more comments

* Tweak another write-host statement

* Undo Catch statement adjustment

It's outside of the scope of this pull request

pester/winutil.Tests.ps1

@@ -0,0 +1,27 @@
+# Load Variables needed for testing
+
+./Compile.ps1
+
+$script = Get-Content .\winutil.ps1
+# Remove the part of the script that shows the form, leaving only the variable and function declarations
+$script[0..($script.count - 21)] | Out-File .\pester.ps1    
+
+
+BeforeAll {
+    # Execute the truncated script, bringing the variabes into the current scope
+    . .\pester.ps1
+}
+
+Describe "GUI" {
+    Context "XML" {
+        It "Imports with no errors" {
+            $inputXML | should -Not -BeNullOrEmpty
+        }
+    }
+
+    Context "Form" {
+        It "Imports with no errors" {
+            $sync.Form | should -Not -BeNullOrEmpty
+        }
+    } 
+}