added test case for 塵 to support traditional Chinese character, failed for 塵 - need code change for compiler

Author: kaiyuan01

test/hanzi2num.test.js

@@ -128,7 +128,7 @@ describe("hanzi2num", () => {
     });
   });
 
-  //渺、埃、尘、沙、纤、微
+  //渺、埃、尘 (塵)、沙、纤、微
   describe('hanzi2num("一微")', () => {
     it("should translate hanzi to number correctly", () => {
       assert.strictEqual(hanzi2num("一微"), 1e-6);
@@ -147,6 +147,12 @@ describe("hanzi2num", () => {
     });
   });
 
+  describe('hanzi2num("一塵")', () => {
+    it("should translate hanzi to number correctly", () => {
+      assert.strictEqual(hanzi2num("一塵"), 1e-9);
+    });
+  });
+
   describe('hanzi2num("一尘")', () => {
     it("should translate hanzi to number correctly", () => {
       assert.strictEqual(hanzi2num("一尘"), 1e-9);