GUACAMOLE-1391 Add support for hashing passwords with SHA-256 in user-mapping.xml

guacamole/doc/example/user-mapping.xml

@@ -35,7 +35,7 @@
             encoding="md5">
 
         <!-- First authorized connection -->
-		<connection name="localhost">
+    	<connection name="localhost">
             <protocol>vnc</protocol>
             <param name="hostname">localhost</param>
             <param name="port">5901</param>
@@ -43,13 +43,28 @@
         </connection>
 
         <!-- Second authorized connection -->
-   		<connection name="otherhost">
+		<connection name="otherhost">
             <protocol>vnc</protocol>
             <param name="hostname">otherhost</param>
             <param name="port">5900</param>
             <param name="password">VNCPASS</param>
         </connection>
 
- </authorize>
+     </authorize>
+
+     <!-- Another user, but using SHA-256 to hash the password -->
+     <authorize
+            username="USERNAME3"
+            password="5e884898da28047151d0e56f8dc6292773603d0d6aabbdd62a11ef721d1542d8"
+            encoding="sha256">
+
+        <connection name="localhost">
+            <protocol>vnc</protocol>
+            <param name="hostname">localhost</param>
+            <param name="port">5900</param>
+            <param name="password">VNCPASS</param>
+        </connection>
+
+    </authorize>
 
 </user-mapping>