Run odrefresh in composd

This is far from finished, but it is at least started. This currently
fails when pvm_exec tries to create a vsock; instead it will need to
request one from composd.

Test: adb shell apex/com.android.compos/bin/composd_cmd
Bug: 186126194
Change-Id: Ic193ddd3835be3daf70b15e78c56c0ccb98e7a1f
diff --git a/compos/composd/src/composd_main.rs b/compos/composd/src/composd_main.rs
index f674448..33da889 100644
--- a/compos/composd/src/composd_main.rs
+++ b/compos/composd/src/composd_main.rs
@@ -18,6 +18,8 @@
 //! responsible for managing the lifecycle of the CompOS VM instances, providing key management for
 //! them, and orchestrating trusted compilation.
 
+mod compos_instance;
+mod odrefresh;
 mod service;
 
 use android_system_composd::binder::{register_lazy_service, ProcessState};
@@ -29,6 +31,8 @@
         android_logger::Config::default().with_tag("composd").with_min_level(log::Level::Info),
     );
 
+    ProcessState::start_thread_pool();
+
     let service = service::new_binder();
     register_lazy_service("android.system.composd", service.as_binder())
         .context("Registering service")?;