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.Management/Get-Location.Tests.ps1

@@ -0,0 +1,19 @@
+Describe "Get-Location" {
+    $currentDirectory=[System.IO.Directory]::GetCurrentDirectory()
+    BeforeEach {
+	pushd $currentDirectory
+    }
+
+    AfterEach {
+	popd
+    }
+
+    It "Should list the output of the current working directory" {
+    
+	(Get-Location).Path | Should Be $currentDirectory
+    }
+
+    It "Should do exactly the same thing as its alias" {
+	(pwd).Path | Should Be (Get-Location).Path
+    }
+}