chore: refactor -copy common code

[rakita]

refactor memory_resize

closing #1637

superseding #1655

[github-actions]

Valgrind Results:

==4500== Cachegrind, a cache and branch-prediction profiler
==4500== Copyright (C) 2002-2017, and GNU GPL'd, by Nicholas Nethercote et al.
==4500== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info
==4500== Command: target/release/revme bench snailtracer
==4500== 
--4500-- warning: L3 cache found, using its data for the LL simulation.
Running snailtracer example!
elapsed: 1.828807804s
==4500== 
==4500== I   refs:      429,381,488
==4500== I1  misses:          4,820
==4500== LLi misses:          4,161
==4500== I1  miss rate:        0.00%
==4500== LLi miss rate:        0.00%
==4500== 
==4500== D   refs:      205,675,632  (133,129,691 rd   + 72,545,941 wr)
==4500== D1  misses:        346,539  (    203,585 rd   +    142,954 wr)
==4500== LLd misses:        142,400  (      7,268 rd   +    135,132 wr)
==4500== D1  miss rate:         0.2% (        0.2%     +        0.2%  )
==4500== LLd miss rate:         0.1% (        0.0%     +        0.2%  )
==4500== 
==4500== LL refs:           351,359  (    208,405 rd   +    142,954 wr)
==4500== LL misses:         146,561  (     11,429 rd   +    135,132 wr)
==4500== LL miss rate:          0.0% (        0.0%     +        0.2%  )