Modify Setup, Path, added Get-MyModules

+ base/Get-MyModules added
* base/profile.d/Test-MyModules modified to use Get-MyModules
* Setup-Profile modified so that sudo witll preserve environment
* Get-Path fixed bug introduced in last commit, Get-Path would fail when
  file to be edited didn't exist

base/Get-MyModules.ps1

@@ -0,0 +1,21 @@
+param([switch]$IgnoreSystem,[switch]$MissingOnly)
+
+$local:currentSys = @('Always') + ([SystemName]::_GetValidValues('',$true,$true));
+
+[MyConfig]::GetConfigPaths('mymodules',$false) |
+    ForEach-Object { 
+        $local:modules = $( Get-Content $_ | ConvertFrom-Json );
+        $modules |
+            Get-Member -MemberType NoteProperty | Select-Object -ExpandProperty Name |
+            Where-Object {
+                $IgnoreSystem -or ( $_ -in $currentSys )
+            } |
+            ForEach-Object { $modules."$_" }
+    } |
+    Where-Object {
+        -not $MissingOnly -or
+        $( try  {
+            -not (Get-Module -ListAvailable $_ -ErrorAction stop)
+            } catch { $true }
+        )
+    }