All the encoding parts move to oxen-encoding recently; this updates to
the latest version of oxen-mq, adds oxen-encoding, and converts
everything to use oxenc headers rather than the oxenmq compatibility
shims.
This started out with a few string_view simplifications, but unwinding
the string_view calls resulted in quite a few changes.
- use constexpr string_view instead of macros for constants
- use constexpr ints for other macros instead of constants (to be
consistent with the string_view constexprs); also eliminated a couple of
unused variables.
- convert amount parsing to string_view, and rewrite it with comments to
be far less confusing. (Previously it was remove a "." from a string,
chopping 0s off the end then putting them back on which was hard to
follow).
- fixed some not-quite-right amount parsing unit tests
- replace a bunch of string code (including lots of code allocating new
strings with .substr on a string) with std::string_view.
- avoid using C functions for strings
- convert epee http uri conversion methods to string_view (and fix one
typoed func name "conver" -> "convert")
- Add a `tools::hex_to_type` that converts hex directly into a (simple)
type, with hex and length verification for the type, and use it to
eliminate a bunch of intermediate std::string conversions.
- Convert a bunch of error-prone raw pointer string appends into
more type-safe `tools::view_guts(val)` calls. (In particular view_guts
always gets the sizeof() correct, while the individual call could easily
put the wrong type in the `sizeof()`).
This adds the loki-mq dependency and replaces SNNetwork with it (along
with some syntax updates for how loki-mq changed a bit from SNNetwork).
This also replaces common/hex.h and common/string_view.h with loki-mq's
faster (hex) and more complete and tested (string_view) implementations.
- constexpr functions in common/loki.h for inlining
- move hex functions out from common/loki.h to common/hex.h
- use and apply prev_txid on LNS TX's to all LNS types (for updating in the future)
- add lns burn type, for custom burn amounts
- accept and validate lokinet addresses via base32z
- return lokinet addresses in RPC LNS calls via base32z
- updated Messenger references to Session
- update documentation to note that only Session LNS entries are allowed currently
- remove raw c-string interface from LNS db
- update multi-SQL queries into single SQL queries
- remove tx estimation backlog in anticipation for 2 priorities only, blink + unimportant
