Refactored iterator to offset
Added ip header test
Add parser builder method for bit fields
Add bit field parser
Add IP packet test
Add tag "bit" to npm meta data
Introduced Context.generateTmpVariable to handle tmp variable names
Add mail address to copyright text
Fixed bug that parser ends with bit parser doesnt work correctly
Add test for bit field parsers
Added README for bit field parser
Merge branch 'feat-bit-field' into develop