Restructure of pester test layout

This restructuring moves tests to a directory name which matches the module
in which the cmdlet resides which should improve the discoverability of a
specific test.
For tests which are not about cmdlets in a module, new directories have been
created to make those tests easier to find as well

test/powershell/Modules/Microsoft.PowerShell.Utility/Get-Host.Tests.ps1

@@ -0,0 +1,21 @@
+Describe "Get-Host DRT Unit Tests" -Tags DRT{
+    It "Should works proper with get-host" {
+        $results = Get-Host 
+        $results | Should Be $Host
+        $results.GetType().Name | Should Be InternalHost
+    }
+}
+
+Describe "Get-Host" {
+    It "Should return a type of InternalHost for Get-Host cmdlet" {
+
+	(Get-Host).GetType().Name | Should Be InternalHost
+
+    }
+
+    It "Should have $ host variable be equivalent to Get-Host object" {
+
+	Get-Host | Should Be $host
+
+    }
+}