move worker_task.rs into proxmox-rest-server crate

Also moved pbs-datastore/src/task.rs to pbs-tools, which now depends on 'log'.

src/api2/node/disks/directory.rs

@@ -17,7 +17,7 @@ use crate::tools::disks::{
 };
 use crate::tools::systemd::{self, types::*};
 
-use crate::server::WorkerTask;
+use proxmox_rest_server::WorkerTask;
 
 const BASE_MOUNT_DIR: &str = "/mnt/datastore/";
 

src/api2/node/disks/mod.rs

@@ -15,7 +15,7 @@ use crate::tools::disks::{
     DiskUsageInfo, DiskUsageType, DiskManage, SmartData,
     get_disks, get_smart_data, get_disk_usage_info, inititialize_gpt_disk,
 };
-use crate::server::WorkerTask;
+use proxmox_rest_server::WorkerTask;
 
 pub mod directory;
 pub mod zfs;

src/api2/node/disks/zfs.rs

@@ -19,7 +19,7 @@ use crate::tools::disks::{
     DiskUsageType,
 };
 
-use crate::server::WorkerTask;
+use proxmox_rest_server::WorkerTask;
 
 
 #[api(