[Feature Request] Add support for WARC file format

Created by: ibnesayeed

WARC is well-known format for storing crawled captures. It can store arbitrary number of HTTP requests and responses along with other network interactions such as DNS lookups along with their header, payload, and other metadata. It is usually used by web archives, but there are some other use cases as well. WARC is the default format in which Heritrix crawler (originally developed by the Internet Archive) stores captures. Wget supports WARC format as well. There are some other tools such as WARCreate (a Chrome extension) to save web pages in WARC format along with all their page requisites while browsing and Squidwarc (a Headless Chrome-based crawler) specifically for archival purposes.

That said, adding support for WARC format will immediately make this project more useful for the web archiving community.