Introduce function for converting bytes list in (hex or int) to string

This function is needed for conversion of bytes list output of TLV parser to representable string

Change-Id: I8c1e39ccf9fb517d465e73f69c720e7fdde02ded

pySim/utils.py

@@ -40,6 +40,10 @@ def h2s(s):
 def s2h(s):
 	return b2h(s)
 
+# List of bytes to string
+def i2s(s):
+	return ''.join([chr(x) for x in s])
+
 def swap_nibbles(s):
 	return ''.join([x+y for x,y in zip(s[1::2], s[0::2])])