Phoenix.Channels: WatchOS and tvOS support

[KronicDeth]

socket2 does not have support for watchos, so the cargo make xcframework in liveview-native-core fails because it can't buld

[cargo-make] INFO - Execute Command: "rustup" "run" "nightly" "cargo" "build" "-Z" "build-std" "--target" "arm64_32-apple-watchos" "--target" "armv7k-apple-watchos" "--target" "aarch64-apple-watchos-sim" "--target" "x86_64-apple-watchos-sim" "-p" "liveview-native-core"
   Compiling thiserror v1.0.43
   Compiling serde v1.0.171
   Compiling httparse v1.8.0
   Compiling num_cpus v1.16.0
   Compiling socket2 v0.4.9
   Compiling mio v0.8.8
   Compiling signal-hook-registry v1.4.1
   Compiling log v0.4.19
   Compiling utf-8 v0.7.6
   Compiling base64 v0.13.1
error[E0063]: missing field `sin_len` in initializer of `sockaddr_in`
   --> /Users/kronic.deth/.cargo/registry/src/index.crates.io-6f17d22bba15001f/socket2-0.4.9/src/sockaddr.rs:225:27
    |
225 |         let sockaddr_in = sockaddr_in {
    |                           ^^^^^^^^^^^ missing `sin_len`

error[E0063]: missing field `sin6_len` in initializer of `sockaddr_in6`
   --> /Users/kronic.deth/.cargo/registry/src/index.crates.io-6f17d22bba15001f/socket2-0.4.9/src/sockaddr.rs:260:28
    |
260 |         let sockaddr_in6 = sockaddr_in6 {
    |                            ^^^^^^^^^^^^ missing `sin6_len`

For more information about this error, try `rustc --explain E0063`.
error: could not compile `socket2` (lib) due to 2 previous errors
warning: build failed, waiting for other jobs to finish...
error: could not compile `socket2` (lib) due to 2 previous errors
error: could not compile `socket2` (lib) due to 2 previous errors
error: could not compile `socket2` (lib) due to 2 previous errors
[cargo-make] ERROR - Error while executing command, exit code: 101
[cargo-make] WARN - Build Failed.

The code in question has cfg for macos and ios , but no watchos

impl From<SocketAddrV4> for SockAddr {
    fn from(addr: SocketAddrV4) -> SockAddr {
        let sockaddr_in = sockaddr_in {
            sin_family: AF_INET as sa_family_t,
            sin_port: addr.port().to_be(),
            sin_addr: crate::sys::to_in_addr(addr.ip()),
            sin_zero: Default::default(),
            #[cfg(any(
                target_os = "dragonfly",
                target_os = "freebsd",
                target_os = "haiku",
                target_os = "ios",
                target_os = "macos",
                target_os = "netbsd",
                target_os = "openbsd"
            ))]
            sin_len: 0,
        };
        let mut storage = MaybeUninit::<sockaddr_storage>::zeroed();
        // Safety: A `sockaddr_in` is memory compatible with a `sockaddr_storage`
        unsafe { (storage.as_mut_ptr() as *mut sockaddr_in).write(sockaddr_in) };
        SockAddr {
            storage: unsafe { storage.assume_init() },
            len: mem::size_of::<sockaddr_in>() as socklen_t,
        }
    }

It looks like we'll need to fork socket2 to get watchos support

[AZholtkevych]

Blocked at this very moment

[KronicDeth]

This work is currently paused with the watchOS test runs just stopping output for unknown reasons without a crash message occurring on the simulator.

╭─kronic.deth@Macintosh ~/github/liveviewnative/phoenix-channels-client ‹37)› 
╰─$ xcrun simctl launch --console booted com.rust.tests
com.rust.tests: 57014

running 26 tests
test channel_key_rotation_test ... ok
test channel_status ... ok
test channel_statuses ... ok
test phoenix_channels_binary_broadcast_test ... ok
test phoenix_channels_call_reply_ok_with_binary_payload_test ... ok
test phoenix_channels_call_reply_ok_with_json_payload_test ... ok
test phoenix_channels_call_with_binary_payload_raise_test ... ok
test phoenix_channels_call_with_binary_payload_reply_error_with_binary_payload_test ... ok
test phoenix_channels_call_with_binary_payload_reply_error_without_payload_test ... ok
test phoenix_channels_call_with_binary_payload_reply_ok_without_payload_test ... ok
test phoenix_channels_call_with_json_payload_raise_test ... %                                                                                                                                                   ╭─kronic.deth@Macintosh ~/github/liveviewnative/phoenix-channels-client ‹37)›