Quodss/urwasm stateful

[dozreg-toplud]

Depends on https://github.com/urbit/wasm3/pull/1

Adds stateful jet for ++run:wasm-lia:

• Defines two sets of allocators for m3 structs and codepages;
• Updates _reduce_monad to enable computation suspension;
• Adds _get_state to load wasm3 state from persistent cache table;
• Adds _move_state to store wasm3 state in persistent cache table with the new key and remove an entry with the old key;
• updates u3we_lia_run version due to return type change in https://github.com/urbit/urbit/pull/7128;

Misc: builtins for c3_d, motes

TODO:

• [x] optimizations:
  • [x] arena on a slab to prevent copying data one more time;
  • [x] smarter m3 struct realloc (currently wastes memory since wasm3 uses realloc to grow dynamic arrays);