feat: channel model implementation (#250)

Co-authored-by: ToastXC <100072983+toastxc@users.noreply.github.com>

crates/core/models/src/v0/mod.rs

@@ -1,11 +1,13 @@
 mod account_strikes;
 mod bots;
 mod channel_webhooks;
+mod channels;
 mod files;
 mod users;
 
 pub use account_strikes::*;
 pub use bots::*;
 pub use channel_webhooks::*;
+pub use channels::*;
 pub use files::*;
 pub use users::*;