Move yunq to new thread spawn and remove old one.

rust/lib/yunq/src/server.rs

@@ -2,6 +2,8 @@ use crate::buffer::ByteBuffer;
 use alloc::vec::Vec;
 use mammoth::cap::Capability;
 use mammoth::syscall;
+use mammoth::thread;
+use mammoth::thread::JoinHandle;
 use mammoth::zion::z_cap_t;
 use mammoth::zion::ZError;
 
@@ -50,3 +52,10 @@ pub trait YunqServer {
         cap_buffer: &mut Vec<z_cap_t>,
     ) -> Result<usize, ZError>;
 }
+
+pub fn spawn_server_thread<T>(mut server: T) -> JoinHandle
+where
+    T: YunqServer + Send + 'static,
+{
+    thread::spawn(move || server.server_loop())
+}