Print plugin success messages + print plugin location on load (#267)

* report plugin state if succeed

We havbe a state field in the plugin response that its not being used
for anything. This patch makes luet print the state reported from the
plugin if its not empty as a way for plugins to report data on success
to users. If the field is empty it will be ignored.

Signed-off-by: Itxaka <igarcia@suse.com>

* Print plugin path

This patch adds the plugin location to the printed plugin list for a
more rich view of the loaded plugins

Signed-off-by: Itxaka <igarcia@suse.com>

pkg/api/core/bus/events.go

@@ -99,6 +99,12 @@ func (b *Bus) Initialize(ctx *types.Context, plugin ...string) {
 			if r.Errored() {
 				err := fmt.Sprintf("Plugin %s at %s had an error: %s", p.Name, p.Executable, r.Error)
 				ctx.Fatal(err)
+			} else {
+				if r.State != "" {
+					message := fmt.Sprintf(":lollipop: Plugin %s at %s succeded, state reported:", p.Name, p.Executable)
+					ctx.Success(message)
+					ctx.Info(r.State)
+				}
 			}
 		})
 	}