Introduce support for move-only types in InlinedVector, and use move during resize.

Note: the previous code in Move seemed to use std::move, but without effect, since the argument was a const&.
This cl fixes the problem, shown by my test with a MoveOnly type.

From:
Benchmark                        Time(ns)    CPU(ns) Iterations
---------------------------------------------------------------
BM_InlinedVectorFillString/0            2          2  357702278
BM_InlinedVectorFillString/1           23         23   30020181  40.8M items/s
BM_InlinedVectorFillString/8          177        177    3938795  43.1M items/s
BM_InlinedVectorFillString/64        2515       2516     278714  24.3M items/s
BM_InlinedVectorFillString/512      21497      21478      31994  22.7M items/s
BM_InlinedVectorFillString/1k       43361      43312      16184  22.5M items/s

To:
Benchmark                        Time(ns)    CPU(ns) Iterations
---------------------------------------------------------------
BM_InlinedVectorFillString/0            2          2  357070962
BM_InlinedVectorFillString/1           23         23   31134543  42.0M items/s
BM_InlinedVectorFillString/8          166        166    4246010  45.9M items/s
BM_InlinedVectorFillString/64        1645       1644     427302  37.1M items/s
BM_InlinedVectorFillString/512      13830      13806      49712  35.4M items/s
BM_InlinedVectorFillString/1k       28164      28114      24588  34.7M items/s
Change: 130922812