logging: Add containerID and sandboxID to all log calls

Adding cid+sid fields to the log entries generated by most of the CLI
commands will make debugging across the system easier.

Fixes #452.

Signed-off-by: James O. D. Hunt <james.o.hunt@intel.com>

cli/state.go

@@ -34,6 +34,8 @@ instance of a container.`,
 }
 
 func state(containerID string) error {
+	kataLog = kataLog.WithField("container", containerID)
+
 	// Checks the MUST and MUST NOT from OCI runtime specification
 	status, _, err := getExistingContainerInfo(containerID)
 	if err != nil {