Support more upper layer services (many, many, many more) #450
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Note
This PR replaces the original #446
As requested in #374 and by multiple other users of the application (e.g., #289, #338), this PR adds support for several new upper layer services in addition to the 24 already supported application layer protocols.
The full list of the new supported services, taken from Nmap, is basically the IANA assigned ports list plus some trojans and worms.
It contains 6438 different services/protocols/trojans/worms.
Services are stored as a compile-time, static, perfect hash map generated in
build.rs
with the help of rust-phf.This strategy guarantees high performances while avoiding the complexities of #446.
Fixes #374