Allow iPgm.addParm to pass options to iParm

This change is useful for allowing pass-by-value without having to import `iParm` directly. There may be other uses; whatever you can do with `iParm`, you ought to be able to do on the call to `addParm`.

Signed-off-by: jkyeung <gallium.arsenide@gmail.com>

Author: jkyeung

src/itoolkit/itoolkit.py

@@ -386,7 +386,7 @@ def __init__(self, ikey, iname, iopt={}):
         super(iPgm, self).__init__(iopt, opts)
         self.pcnt = 0
 
-    def addParm(self, obj): # noqa N802
+    def addParm(self, obj, iopt={}): # noqa N802
         """Add a parameter child node.
 
         Args:
@@ -396,7 +396,7 @@ def addParm(self, obj): # noqa N802
           (void)
         """
         self.pcnt += 1
-        p = iParm('p' + str(self.pcnt))
+        p = iParm('p' + str(self.pcnt), iopt)
         p.add(obj)
         self.add(p)
         return self