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/ConvertFrom-Csv.Tests.ps1

@@ -0,0 +1,65 @@
+$here = Split-Path -Parent $MyInvocation.MyCommand.Path
+
+Describe "ConvertFrom-Csv" {
+    $testObject = "a", "1"
+    $testcsv = Join-Path -Path (Join-Path -Path $here -ChildPath assets) -ChildPath TestCsv2.csv
+    $testName = "Zaphod BeebleBrox"
+    $testColumns = @"
+a,b,c
+1,2,3
+"@
+    It "Should be able to be called" {
+	{ ConvertFrom-Csv -InputObject $testObject } | Should Not Throw
+    }
+
+    It "Should be able to pipe" {
+	{ $testObject | ConvertFrom-Csv } | Should Not Throw
+    }
+
+    It "Should have expected results when using piped inputs" {
+	$csvContent   = Get-Content $testcsv
+	$actualresult = $csvContent | ConvertFrom-Csv
+
+	$actualresult.GetType().BaseType.Name | Should Be "Array"
+	$actualresult[0].GetType().Name          | Should Be "PSCustomObject"
+
+	#Should have a name property in the result
+	$actualresult[0].Name | Should Be $testName
+    }
+
+    It "Should be able to set a delimiter" {
+	{ $testcsv | ConvertFrom-Csv -Delimiter ";" } | Should Not Throw
+    }
+
+    It "Should actually delimit the output" {
+	$csvContent   = Get-Content $testcsv
+	$actualresult = $csvContent | ConvertFrom-Csv -Delimiter ";"
+
+	$actualresult.GetType().BaseType.Name    | Should Be "Array"
+	$actualresult[0].GetType().Name          | Should Be "PSCustomObject"
+
+	# ConvertFrom-Csv takes the first line of the input as a header by default
+	$actualresult.Length | Should Be $($csvContent.Length - 1)
+    }
+
+    It "Should be able to have multiple columns" {
+	$actualData   = $testColumns | ConvertFrom-Csv
+
+	$actualLength = $($( $actualData | gm) | Where-Object {$_.MemberType -eq "NoteProperty" }).Length
+
+	$actualLength | Should Be 3
+    }
+}
+
+Describe "ConvertFrom-Csv DRT Unit Tests" -Tags DRT{
+    It "Test ConvertFrom-Csv with pipelined InputObject and Header" {
+        $inputObject = [pscustomobject]@{ First = 1; Second = 2 } 
+        $res = $inputObject | ConvertTo-Csv         
+        $result = $res | ConvertFrom-Csv -Header "Header1","Header2"
+
+        $result[0].Header1 | Should Be "First"
+        $result[0].Header2 | Should Be "Second"
+        $result[1].Header1 | Should Be "1"
+        $result[1].Header2 | Should Be "2"
+    }
+}