Cannot specify filecoin as a source chain

[npty]

Add a mapping for Filecoin -> filecoin-2 when the user runs deploy and execute command.

Log

> axelar-examples@1.0.0 execute
> node scripts/runExecute evm/call-contract testnet Filecoin Avalanche Hello world
--- Initially ---
value at Avalanche is ""
/home/stephen/workspace/axelar/axelar-examples/node_modules/@axelar-network/axelarjs-sdk/dist/src/utils/validateChain.js:46
               throw new Error(`Invalid chain identifier for ${chains[i]}. Did you mean ${validations[i].bestMatch}?`);
                     ^
Error: Invalid chain identifier for filecoin. Did you mean filecoin-2?