* Add new file 'network_traffic_filter.c/.h"
* Add feature to drop or accept specific packet transmit over edge network interface by rules.
* fix CMakeLists.txt typo
* Update Rule String Format
* replace -F (filter) with -R (rule) for traffic restrictions.
* Update edge help (-h) message. Update documents.
* Pass Build on CircleCI and local Windows 10 VS2019
* Fix cmake build failed because of sn_selection
* fix operate void* cause vs2016 build failed
* Fix typo to pass build on windows.
* add inttypes.h for n2n_typedefs.h to pass windows build
* modify headers to pass build on windows.
joshuafc