[R] use altrep when possible for (RecordBatch, Table) -> data.frame

[asfimport]

Reporter: Romain Francois / @romainfrancois
Assignee: Romain Francois / @romainfrancois

Related issues:

• [R] use RTasks to manage parallel in converting arrow to R (Is contained by)

_{Note: This issue was originally created as ARROW-13114. Please see the migration documentation for further details.}