GUACAMOLE-753: Add TOTP auth method to Docker image

guacamole-docker/bin/build-guacamole.sh

@@ -127,6 +127,7 @@ if [ -f extensions/guacamole-auth-radius/target/guacamole-auth-radius*.jar ]; th
     cp extensions/guacamole-auth-radius/target/guacamole-auth-radius*.jar "$DESTINATION/radius"
 fi
 
+#
 # Copy OPENID auth extension and schema modifications
 #
 
@@ -135,6 +136,15 @@ if [ -f extensions/guacamole-auth-openid/target/guacamole-auth-openid*.jar ]; th
     cp extensions/guacamole-auth-openid/target/guacamole-auth-openid*.jar "$DESTINATION/openid"
 fi
 
+#
+# Copy TOTP auth extension if it was built
+#
+
+if [ -f extensions/guacamole-auth-totp/target/guacamole-auth-totp*.jar ]; then
+    mkdir -p "$DESTINATION/totp"
+    cp extensions/guacamole-auth-totp/target/guacamole-auth-totp*.jar "$DESTINATION/totp"
+fi
+
 #
 # Copy Duo auth extension if it was built
 #