Refactor `Block::getBlockActionCollectionID()`
Refactor `Block::getBlockActionCollectionID()`

Refactor `Block::getBlockActionCollectionID()` return value.

- Return Collection object integer id if `Block::getCollectionObject()`
  return an object instead of just returning the object
- Return false if not Collection object found

MichaelMaar/concrete5,MichaelMaar/concrete5,avdevs/concrete5,TimDix/concrete5,avdevs/concrete5,matt9mg/concrete5,matt9mg/concrete5,MichaelMaar/concrete5,TimDix/concrete5,matt9mg/concrete5,avdevs/concrete5,TimDix/concrete5