Add effects result builder for sugar

[sobabear]

Related Issues 💭

Add result builder for effects.

Description 📝

Added result builder for effects.merge and concat

can use like

//..

 return .concat(
  .increase,
  .increase,
  .increase
)
//.. can be like

 return .concat {
  .increase
  .increase
  .increase
}

Checklist ✅

• If the changes affect existing functionality, please verify whether the above information has been appropriately described.

[DevYeom]

Thank you for the good suggestion. 👍

I'm approving to give you credit. I will add the following three improvements afterwards.

1. Public functions need comments for documentation.
2. There is no test code for EffectsBuilder.
3. It would be good if EffectsBuilder could support other cases of resultBuilder as well.

There is no need to delete the existing checklist items. A checklist is just a checklist.