Add default impl on SearchBy

See merge request !28

v5 /rpc changes - aurweb 6.1.9

See merge request !27

Several "by" parameters were added:
* submitter
* provides
* conflicts
* replaces
* groups
* keywords
* comaintainers

Signed-off-by: moson-mo <mo-son@mailbox.org>

There are two additional fields that were added to the response data of /rpc

* Submitter
* CoMaintainers

Signed-off-by: moson-mo <mo-son@mailbox.org>

`Serialize` instance for `Package`

See merge request !26

Use post requests

See merge request !25

Bypasses the uri length limit allowing more packages per request.

Fixes

See merge request !24

AUR_URL can be confusing as poeple may expect it to point to
aur.archlinux.org and not aur.archlinux.org/rpc. This makes it clear
that URL specificly points to the RPC.

Use an associated type instead of generics on Raur

See merge request !23

Separate traits from impl

See merge request !22

This allows users to implement the Raur trait with their own backend
without pulling in all the extra stuff like reqwest.

Ensure the http response was successful

See merge request !21

This fixes raur trying to parse the json anyway and giving an unhelpful
error.

Bump deps

See merge request !20

Use clippy checks in CI

See merge request !19

Breaking changes due to tokio bump