Add a script for installing Oh My Posh

scripts/Common/Software/Oh My Posh/Manage.ps1

@@ -0,0 +1,28 @@
+param (
+    $Action,
+    [hashtable] $Arguments
+)
+
+. "$PSScriptRoot/../PowerShell/Profile.ps1";
+. "$PSScriptRoot/../../Scripts/Software.ps1";
+. "$PSScriptRoot/../../Types/InstallerAction.ps1";
+
+Start-SoftwareInstaller @PSBoundParameters `
+    -Installer {
+        param(
+            [scriptblock] $Installer
+        )
+
+        & $Installer -Action ([InstallerAction]::Configure);
+    } `
+    -Configurator {
+        Add-PowerShellProfileStatement `
+            -System `
+            -Category "oh-my-posh" `
+            -Script (
+                @(
+                    "# Oh My Posh!",
+                    (Get-ScriptInitializer "oh-my-posh init pwsh"),
+                    (Get-ScriptInitializer "oh-my-posh completion powershell")
+                ) -join [System.Environment]::NewLine)
+    };