added files for mod_compare and modified src/CMakeLists
Merge branch 'compare' of https://github.com/Orange-OpenSource/mod_dup into compare
empty file added
added configuration commands and input filter
added function to serialize the input body
dev in progress for the output filter
Dev Output filter (Work in progress) + fix conf mod_compare
OutputFilter: now it returns an empty brigade if DupType=response
now the response header is stored in a map
merged with branch response
added unit tests for mod_compare
dev function writeDifferencese + unit tests
fixed comment
added unit tests for mod_compare (input and output filters)
fixed unit tests
using library ws_diff
removed unused file
Integration of mod_copmpare and mod_dup
Integrated mod_compare code. TODO: Normalize all the links and includes paths to libws-diff