runtime-rs: add oci hook support

According to the runtime OCI Spec, there can be some hook
operations in the lifecycle of the container. In these hook
operations, the runtime can execute some commands. There are different
points in time in the container lifecycle  and different hook types
can be executed.

In this commit, we are now supporting 4 types of hooks(same in
runtime-go): Prestart hook, CreateRuntime hook, Poststart hook and
Poststop hook.

Fixes: #5787

Signed-off-by: Yushuo <y-shuo@linux.alibaba.com>

src/dragonball/src/api/v1/instance_info.rs

@@ -50,6 +50,8 @@ pub struct InstanceInfo {
     pub vmm_version: String,
     /// The pid of the current VMM process.
     pub pid: u32,
+    /// The tid of the current VMM master thread.
+    pub master_tid: u32,
     /// The state of async actions.
     pub async_state: AsyncState,
     /// List of tids of vcpu threads (vcpu index, tid)
@@ -66,6 +68,7 @@ impl InstanceInfo {
             state: InstanceState::Uninitialized,
             vmm_version,
             pid: std::process::id(),
+            master_tid: 0,
             async_state: AsyncState::Uninitialized,
             tids: Vec::new(),
             last_instance_downtime: 0,
@@ -80,6 +83,7 @@ impl Default for InstanceInfo {
             state: InstanceState::Uninitialized,
             vmm_version: env!("CARGO_PKG_VERSION").to_string(),
             pid: std::process::id(),
+            master_tid: 0,
             async_state: AsyncState::Uninitialized,
             tids: Vec::new(),
             last_instance_downtime: 0,