feat(env): setSpecProperty/setSuiteProperty(key, value) to attach data to tests

Use setSpecProperty to attach key/value pairs to spec results that can be
picked up in specialized jasmine reporters.  Example use-cases
include:
  * Tagging specs with URLs or string-tokens referencing test-plan docs.
  * Recording performance information for blocks of JS.
Similarly setSuiteProperty attaches key/value pairs to suite results

src/core/Spec.js

@@ -48,6 +48,7 @@ getJasmineRequireObj().Spec = function(j$) {
      * @property {String} pendingReason - If the spec is {@link pending}, this will be the reason.
      * @property {String} status - Once the spec has completed, this string represents the pass/fail status of this spec.
      * @property {number} duration - The time in ms used by the spec execution, including any before/afterEach.
+     * @property {Object} properties - user-supplied key-value pairs.
      */
     this.result = {
       id: this.id,
@@ -57,7 +58,8 @@ getJasmineRequireObj().Spec = function(j$) {
       passedExpectations: [],
       deprecationWarnings: [],
       pendingReason: '',
-      duration: null
+      duration: null,
+      properties: null
     };
   }
 
@@ -74,6 +76,11 @@ getJasmineRequireObj().Spec = function(j$) {
     }
   };
 
+  Spec.prototype.setSpecProperty = function(key, value) {
+    this.result.properties = this.result.properties || {};
+    this.result.properties[key] = value;
+  };
+
   Spec.prototype.expect = function(actual) {
     return this.expectationFactory(actual, this);
   };