Provide a way to disassemble code in a tombstone.

Test: ran disassemble_test.py

Change-Id: Id6beb23ff40d72b89b4d8400d645f7f868fd87d2

scripts/disassemble_test.py

@@ -0,0 +1,9 @@
+#!/usr/bin/python
+
+import disassemble_tombstone
+import disassemble_test_input
+
+for test in disassemble_test_input.tests:
+  print test
+  for line in disassemble_tombstone.Disassemble(iter(disassemble_test_input.tests[test].splitlines(True))):
+    print line,