Updating test for TOST QA Pod

Add more robust topology check to Segment routing tests
Fix Typos
Include minimum flow count # in the comparision (>= vs > )
Add option for username and password in onos-app function
Don't add app prefix if it looks like it is already the full name

Change-Id: Ib4af0f72df8e7dcc5c179fafea1fd9c61d931246
(cherry picked from commit cda0902ee85041b22da8ad7638a8518914d07322)
diff --git a/TestON/drivers/common/cli/emulator/mininetclidriver.py b/TestON/drivers/common/cli/emulator/mininetclidriver.py
index 7a4e565..439b4fb 100644
--- a/TestON/drivers/common/cli/emulator/mininetclidriver.py
+++ b/TestON/drivers/common/cli/emulator/mininetclidriver.py
@@ -3915,6 +3915,8 @@
         if hostHome is not None:
             self.hostHome = hostHome
         try:
+            self.handle.sendline( "" )
+            self.handle.expect( self.Prompt() )
             if not host:
                 host = self.name
             if self.mExecDir: