feat: Asterisc contracts VM tests - FFI

[pcw109550]

Description

Implements FFI interface for fetching snapshot data on foundry testing. Subset of ethereum-optimism/optimism#6638.

For unknown reason, importing @optimism/src/libraries/DisputeTypes.sol causes below build error.

Error: 
Compiler run failed:
Error (2333): Identifier already declared.
 --> lib/optimism/packages/contracts-bedrock/src/dispute/lib/LibGameId.sol:9:1:
  |
9 | library LibGameId {
  | ^ (Relevant source part starts here and spans across multiple lines).
Note: The previous declaration is here:
 --> lib/optimism/packages/contracts-bedrock/src/dispute/lib/LibGameId.sol:4:1:
  |
4 | import "src/libraries/DisputeTypes.sol";
  | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

I could not resolve this, so first hardcoded the VMStatuses for temporary solution. Will try to remove this in the follow up PR.

Tests

Added a minimal viable test which only tests add RISCV instruction: test_add_succeeds. Tests for instruction and syscalls will be added in followup PR.

Additional context

Current dependencies on/for this PR:

• master
  • PR feat: Asterisc contracts VM tests - FFI #20 (this PR)
    • PR feat: Asterisc contracts VM tests - Forge Test  #22