Support more serialization data types

[necosta]

Added support for Array, Seq and Vector.
Any other types can be added by having the user pass the correspondent given instance.

Was also exploring handling some circular references that don't work at the moment.
Example:

case class Person(name: String, children: List[Person])

but gave up. Should be seen as an edge case.

Ready for review.

[juanpedromoreno]

Thanks @necosta !