DevTools: Add resource_available as a common shared util (#36632)

These PR adds `resource_available` as a common shared util


- [x] ./mach build -d does not report any errors
- [x] ./mach test-tidy does not report any errors
- [x] These changes partially implement
https://github.com/servo/servo/issues/36027

---------

Signed-off-by: atbrakhi <atbrakhi@igalia.com>

components/devtools/lib.rs

@@ -30,6 +30,7 @@ use devtools_traits::{
 use embedder_traits::{AllowOrDeny, EmbedderMsg, EmbedderProxy};
 use ipc_channel::ipc::{self, IpcSender};
 use log::trace;
+use resource::ResourceAvailable;
 use serde::Serialize;
 use servo_rand::RngCore;
 
@@ -75,6 +76,7 @@ mod actors {
 mod id;
 mod network_handler;
 mod protocol;
+mod resource;
 
 #[derive(Clone, Debug, Eq, Hash, PartialEq)]
 enum UniqueId {