replay: some build fixes

Minimal fixes to get cube_etna2 and cube_etna2_gc2000 to compile again.
documentation update for RS
driver: get rid of caching of gpu/cpu pointers

No longer cache logical and GPU address for resource levels
but store offsets and query only when needed.
This is the first step toward submitting bo's with relocations
(just search for `etna_bo_gpu_address` to find all places where GPU
addresses are used).