arrow

PARQUET-1709: [C++] Avoid unnecessary temporary std::shared_ptr copies

Closes #5949 from gawain-bolton/PARQUET-1709_avoid_unnecessary_copies and squashes the following commits:

4f01549d0 <gawain.bolton> Add #include <utility> for std::move()
1b7e70be0 <gawain.bolton> Reduce copying of std::shared_ptr parameters by passing by value and using std::move() to avoid subsequent copies.
4f7701be2 <gawain.bolton> PARQUET-1709:  Avoid unnecessary temporary copies

Authored-by: gawain.bolton <gawain.bolton@cfm.fr>
Signed-off-by: Wes McKinney <wesm+git@apache.org>