feat: support seeding blockchain state

[yxliang01]

Description

Sometimes, we only want to perform analysis on contracts that are in certain blockchain state. So, adding such support would be great!

[muellerberndt]

Hey @xyliang01, the officially supported way of doing this is:

• Initialise the state you want in Ganache
• Run myth analyze --rpc ganache -a <entrypoint-address>

This will initialise bytecode, balances and storage values via RPC and supports multi-contract environments. Works well in conjunction with Truffle migrations & scripts!