added test case for 纖 to test/support traditional Chinese character, failed for 纤 - need code change for compiler to support simplified Chinese

Author: kaiyuan01

test/hanzi2num.test.js

@@ -128,7 +128,7 @@ describe("hanzi2num", () => {
     });
   });
 
-  //渺、埃、尘 (塵)、沙、纤、微
+  //渺、埃、尘 (塵)、沙、纤(纖)、微
   describe('hanzi2num("一微")', () => {
     it("should translate hanzi to number correctly", () => {
       assert.strictEqual(hanzi2num("一微"), 1e-6);
@@ -141,6 +141,12 @@ describe("hanzi2num", () => {
     });
   });
 
+  describe('hanzi2num("一纖")', () => {
+    it("should translate hanzi to number correctly", () => {
+      assert.strictEqual(hanzi2num("一纖"), 1e-7);
+    });
+  });
+
   describe('hanzi2num("一沙")', () => {
     it("should translate hanzi to number correctly", () => {
       assert.strictEqual(hanzi2num("一沙"), 1e-8);