SCORU/Node: sync Oxford rollup node with Alpha
Context
This MR syncs the code of the rollup node for the Oxford protocol with the one for Alpha, after the initial snapshot (!9140 (merged)).
Notable differences:
- Dal.Slot.of_int does not take number of slots
- No is_reveal_enabled in PVM
Manually testing the MR
dune exec tezt/tests/main.exe -- --file sc_rollup.ml oxford
Edited by Alain Mebsout