moved container functions into new mod

WatcherAgent/src/docker/mod.rs

@@ -0,0 +1,12 @@
+pub mod container;
+
+//use std::error::Error;
+use crate::models::DockerContainer;
+
+#[derive(Debug, Clone)]
+pub struct DockerInfo {
+    pub number: u16,
+    pub net_in_total: f64,
+    pub net_out_total: f64,
+    pub dockers: Vec<DockerContainer>,
+}