Updated Pester Problem Matcher (#1362)

* Updated pester problem matcher to take into account seconds and remove [-] from the message

* ms times were still being included in the message. Updated regex to remove ms from message.

* Simplified problem matcher to remove spaces at start of groups 1 and 2, made at least one digit required for time elapsed, and put an optional space after the time elapsed and units.

Author: awickham10

package.json

@@ -176,7 +176,7 @@
         "severity": "error",
         "pattern": [
           {
-            "regexp": "^\\s*(\\[-\\]\\s*.*?)(\\d+)ms\\s*$",
+            "regexp": "^\\s*(?:\\[-\\]\\s+)(.*?)(?:\\s+\\d+\\.?\\d*\\s*m?s)\\s*$",
             "message": 1
           },
           {