The main motivation behind this change is to get just a little
telemetry information from nodes on the network, namely the version
of Radicle they are running.
This is achieved by rewriting `impl Default for UserAgent` which now
uses the version information provided by the build script also used
in other crates.
Also, a new configuration option `node.userAgent` is added, which
allows users to override the user agent if they so please, or set
the value `null`, which will in turn send the user agent
`/radicle/`, which is not really helpful, and the default prior to
this commit.
Creations of `UserAgent` in the whole workspace is cleaned up. In
order to do that `UserAgent::test` is introduced.
Fixes two earlier mistakes:
1. In `fb18083`, `fn null_to_default` was added, which is only
conditionally used if the feature "tor" is enabled, so also
only conditionally compile the function.
2. In `1e13268`, the `impl Arbitrary` for AddressType` was not
properly adjusted for the case where the newly introduced
feature "tor" is disabled.
The `localtime` crate was defined by cloudhead, and is a minimal
repository with a single `lib.rs`.
Instead of using it as an external dependency, copy the code directly
into a new workspace crate `radicle-localtime`.
The default `serde` implementation goes through the `LocalTime`'s
seconds values rather than milliseconds, since this is the more common
format. This allows the removal of the `serde_ext` functions.
The one place milliseconds was used was for the
`radicle::cob::common::Timestamp` type, where the `Serialize` and
`Deserialize` implementations are manually written.
It also adds a `schemars` feature to remove `schemars_ext` functions
in `radicle` as well.
Lorenz Leutgeb
Fintan Halpenny