Up should accept options struct

[bkosm]

Parameters to the Up function should accept a struct rather than a required param and varargs.

---

Turn this:

err = gompose.Up(
	gompose.ReadyOnLog("database system is ready to accept connections", 2),
	func() { _ = gompose.Down() }, // any action to be taken on system interrupt
)

Into this:

err = gompose.Up(
        gompose.UpOpts {
              WaitOnChannel: gompose.ReadyOnLog("database system is ready to accept connections", 2),
              OnInterrupt: func() { _ = gompose.Down() },
        }
)

[bkosm]

done in v0.2.0