feat: revamp provider error handling #511
Merged
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Greatly simplify provider error code matching. Previously, the error code returned from the RPC is an enum with 2 variants for known and unknown codes to accommodate the fact that JSON-RPC nodes sometimes return codes that are part of the JSON-RPC standard, but are not from the Starknet specifications. This commit changes to move the unknown codes to be handled by the implementation-specific error type instead, making it much easier to match against specification error codes, at the cost of being harder to match the unknown codes.