implement successfulAsList method of Guava ListenableFuture

[oldratlee]

subtask of #194

successfulAsList() method is similar to cffu#mostSuccessOf() without timeout parameters, simpler and nice.

According the naming convention/features of cffu, the implementing methods are:

• Factory Methods
  • mSupplyAllSuccessAsync()
  • tupleMSupplyAllSuccessAsync()
  • allSuccessResultsOf()
  • allSuccessTupleOf()
• Instance Methods
  • thenMApplyAllSuccessAsync()
  • thenTupleMApplyAllSuccessAsync()

📝 Implementation Note

• The signature of allSuccess* method is same as the homologous mostSuccess* method expect without 2 timeout parameters.
• The position order of allSuccess* method is before mostSuccess* method.
  (because allSuccess* method is simpler and more straightforward.)