feat: add mail module

wfc-common/pom.xml

@@ -18,6 +18,7 @@
         <module>wfc-common-sensitive</module>
         <module>wfc-common-datascope</module>
         <module>wfc-common-datasource</module>
+        <module>wfc-common-mail</module>
     </modules>
 
     <artifactId>wfc-common</artifactId>