Adding documentations for the Jenkins file

Change-Id: I2ff71c4a787901b80401bb53117572f9c58ef6d0
diff --git a/TestON/JenkinsFile/dependencies/GeneralFuncs.groovy b/TestON/JenkinsFile/dependencies/GeneralFuncs.groovy
index a0c70c9..7618fe0 100644
--- a/TestON/JenkinsFile/dependencies/GeneralFuncs.groovy
+++ b/TestON/JenkinsFile/dependencies/GeneralFuncs.groovy
@@ -1,11 +1,38 @@
+// Copyright 2017 Open Networking Foundation (ONF)
+//
+// Please refer questions to either the onos test mailing list at <onos-test@onosproject.org>,
+// the System Testing Plans and Results wiki page at <https://wiki.onosproject.org/x/voMg>,
+// or the System Testing Guide page at <https://wiki.onosproject.org/x/WYQg>
+//
+//     TestON is free software: you can redistribute it and/or modify
+//     it under the terms of the GNU General Public License as published by
+//     the Free Software Foundation, either version 2 of the License, or
+//     (at your option) any later version.
+//
+//     TestON is distributed in the hope that it will be useful,
+//     but WITHOUT ANY WARRANTY; without even the implied warranty of
+//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//     GNU General Public License for more details.
+//
+//     You should have received a copy of the GNU General Public License
+//     along with TestON.  If not, see <http://www.gnu.org/licenses/>.
+
+// This is the dependency Jenkins script.
+// it has some general functionality of making database command, basic graph part, and get list of the test
+
 #!groovy
 
+// make the init part of the database command
 def database_command_create( pass, host, port, user ){
   return pass + "|psql --host=" + host + " --port=" + port + " --username=" + user + " --password --dbname onostest -c "
 }
+
+// make the basic graph part for the Rscript
 def basicGraphPart( rFileName, host, port, user, pass, subject, branchName ){
   return " Rscript " + rFileName + " " + host + " " + port + " " + user + " " + pass + " " + subject + " " + branchName
 }
+
+// get the list of the test as dictionary then return as a string
 def getTestList( tests ){
     list = ""
     for( String test : tests.keySet() )