Make PowerShellGet loaded for PackageManagement

src/Microsoft.PackageManagement.MetaProvider.PowerShell/PowerShellMetaProvider.cs

@@ -134,6 +134,8 @@ namespace Microsoft.PackageManagement.MetaProvider.PowerShell.Internal {
                     if (_baseFolder == null || !Directory.Exists(_baseFolder)) {
                         throw new Exception(Resources.Messages.CantFindBasePowerShellModuleFolder);
                     }
+
+                    _baseFolder = Path.Combine(_baseFolder, "Modules", "PackageManagement");
                 }
                 return _baseFolder;
             }
@@ -827,4 +829,4 @@ namespace Microsoft.PackageManagement.MetaProvider.PowerShell.Internal {
             }        
         }
     }
-}
+}