Allow HTTP scheme for localhost URLs

In my experience, localhost URLs are almost exclusively used for development purposes, and setting up HTTPS for localhost URLs is really tedious, and most of the time unnecessary.

src/noHttpStringRule.ts

@@ -24,7 +24,7 @@ export class Rule extends Lint.Rules.AbstractRule {
         severity: 'Critical',
         level: 'Mandatory',
         group: 'Security',
-        recommendation: '[true, "http://www.example.com/?.*", "http://www.examples.com/?.*"],',
+        recommendation: '[true, "http://www.example.com/?.*", "http://www.examples.com/?.*", "http://localhost:?.*"],',
         commonWeaknessEnumeration: '319'
     };