Fix DI bugs; implement general logging service

lib/src/lifecycle/Unit.ts

@@ -0,0 +1,19 @@
+import { STATUS_STOPPED, isStatus } from '../const/status.ts'
+
+export default abstract class LifecycleUnit {
+    private _status = STATUS_STOPPED
+
+    public get status() {
+        return this._status
+    }
+
+    public set status(status) {
+        if ( !isStatus(status) )
+            throw new TypeError('Invalid unit status: '+status.description)
+
+        this._status = status
+    }
+
+    public async up(): Promise<void> {};
+    public async down(): Promise<void> {};
+}

lib/src/lifecycle/decorators.ts

@@ -0,0 +1,11 @@
+import { Service } from '../../../di/src/decorator/Service.ts'
+
+const service = Service()
+
+const Unit = (): ClassDecorator => {
+    return (target) => {
+        return service(target)
+    }
+}
+
+export { Unit }