(#209) Disable Browser First Run Wizards

Add function to disable browser first run wizards so that PowerShell
Invoke-WebRequest can work correctly, and so that Edge doesn't pester
the user to configure it.

Boxstarter.WinConfig/Disable-BrowserFirstRun.ps1

@@ -0,0 +1,25 @@
+function Disable-BrowserFirstRun {
+    <#
+    .SYNOPSIS
+    Turns off IE and Edge first run customization wizards
+
+    .LINK
+    https://boxstarter.org
+
+    #>
+    $RegisteryKeys = @(
+        @{ Key = 'HKLM:\Software\Policies\Microsoft\Edge' ; Value = 'HideFirstRunExperience' } # Edge
+        @{ Key = 'HKLM:\Software\Microsoft\Internet Explorer\Main' ; Value = 'DisableFirstRunCustomize' } # Internet Explorer 11
+        @{ Key = 'HKLM:\Software\Policies\Microsoft\Internet Explorer\Main' ; Value = 'DisableFirstRunCustomize' } # Internet Explorer 9
+    )
+
+    foreach ($Key in $RegisteryKeys) {
+        if (-not (Test-Path $Key.Key)) {
+            New-Item -Path $Key.Key -Force
+        }
+
+        New-ItemProperty -Path $Key.Key -Name $Key.Value -Value 1 -PropertyType DWORD -Force
+    }
+
+    Write-Output "IE and Edge first run customizations wizards have been disabled."
+}