created elftools/dwarf and started writing down some basic structs for data primitives and various encodings the format uses
diff --git a/elftools/common/utils.py b/elftools/common/utils.py
index 477d7ee..8b9b9ae 100644
--- a/elftools/common/utils.py
+++ b/elftools/common/utils.py
@@ -7,6 +7,7 @@
 # This code is in the public domain
 #-------------------------------------------------------------------------------
 from .exceptions import ELFParseError, ELFError
+from ..construct import ConstructError
 
 
 def struct_parse(struct, stream, stream_pos=None):