XsWack

`edgeApplication` looks like a API not a component of kubeedge

in edge node, the component that need list-watch usally is CNI、CSI or some agent. we call this k8s operator is inaccurate

Due to low network bandwidth and weak network on the edge side, we have cut out the event-related functions to reduced the number of reported messages.

/assign @fisherxu @gy95 @vincentgoat

/assign @liyuerich

cc @chendave Could you help review this pr? thanks

In edge node, we use `systemd` to manager edgecore service, you can find the service file in path `/etc/systemd/system/edgecore.service` dir, so if edgecore has some failure and exit, then systemd...

similar to https://github.com/kubeedge/kubeedge/issues/4055

/assign @fisherxu @vincentgoat

/assign