Move WissKI Parts to new ingredients system

internal/wisski/ingredient/barrel/running.go

@@ -0,0 +1,12 @@
+package barrel
+
+import "github.com/tkw1536/goprogram/stream"
+
+// Running checks if this WissKI is currently running.
+func (barrel *Barrel) Running() (bool, error) {
+	ps, err := barrel.Stack().Ps(stream.FromNil())
+	if err != nil {
+		return false, err
+	}
+	return len(ps) > 0, nil
+}