Parse and serve fresh Roscomnadzor dump

• Use https://github.com/usher2/vigruzki as dump sources server
• Natural signed Roscomnadzor dumps in the res folder for test purpose (git lfs)

IMPORTANT NOTE

This program is a part of Usher2 ecosystem. The gRPC service will never be published

USE

• First the program tries to decompress a dump.zip file if it exists
• Second the program tries to parse a dump.xml file if it exists
• Then the program periodically tries to fetch a dump from a dump sources server

FEATURES

• Native IPv4 string to 32-bit integer implementation
• gRPC service for check IPv4, IPv6, URL, Domain
• Parse subnets to RADIX tree

WARNING

• Stream parsing a <content>...</content> object is not a good idea. Because we need some checksum on updates before data applying. So I use Decode() method for <content>...</content> parsing
• I don't trust to any data. I'm not trying to guess unknown errors. Only known patterns. Roskomnadzor officials are such entertainers

TODO

• Native RFC3339 parsing
• ~~Parse subnets to RADIX tree~~
• ~~gRPC service for check IPv4, IPv6, URL, Domain~~
• Stream parsing every <content>...</content> object including unchanged is the subject for discussion
• RADIX tree code refactoring