增加signature js接口

ApexDrivers/apexcrm/src/main/java/com/usai/apex/apexcrm/RAJSInterface.java

@@ -62,4 +62,10 @@ public class RAJSInterface extends Object {
         System.out.println("android Navigation click");
 
     }
+    @android.webkit.JavascriptInterface
+    public void Signature(String msg) {
+
+        System.out.println("android Signature click");
+
+    }
 }