Refund L1 transactions

[ptisserand]

Refunding L1 transactions

This PR add the following programs to handle refunding L1 transactions.

Please note that to use Moralis API you need to provide API key with MORALIS_API_KEY environment variable.

extract_refund

extract_refund will connect to bridge database and retrieve all deposit L1 transaction.
ETH price is retrieved through Moralis API.

Usage: extract_refund [OPTIONS] --mongodb <MONGODB> --amount-max <AMOUNT_MAX> --output <OUTPUT>

Options:
      --mongodb <MONGODB>        Mongo db connection string [env: INDEXER__MONGODB_URI=]
      --amount-max <AMOUNT_MAX>  Max amount to refund
      --output <OUTPUT>          CSV output file
      --ceil                     Ceil amount (false by default)
  -h, --help                     Print help

send_refund

send_refund will parse the provide CSV file and send STRKs to recipient.
STRK rpice is retrieved through Moralis API.

Usage: send_refund --mongodb <MONGODB> --input <INPUT> --rpc <RPC> --address <ADDRESS> --private-key <PRIVATE_KEY>

Options:
      --mongodb <MONGODB>          Mongo db connection string [env: REFUND_MONGODB_URI=]
      --input <INPUT>              CSV input file
      --rpc <RPC>                  Starknet RPC [env: STARKNET_RPC=https://sepolia.arkproject.dev]
      --address <ADDRESS>          Starknet account address [env: STARKNET_ACCOUNT_ADDRESS=0x04093cb5725f75a9b095321b11e4708034c23ce3a4cf01754287b71e9f28661a]
      --private-key <PRIVATE_KEY>  Starknet account private key [env: STARKNET_PRIVATE_KEY=0x044db9ceb7e7cdb912b9e0d59b9302c6f9fa84e55cceed4bc003c37a485ea353]
  -h, --help                       Print help

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[remiroyc]

That sounds good to me, though I would have opened a PR on this repo solely for the indexing part (indexing the dollar price of the fees). I would have placed the refund script in another private repo, since it only concerns Everai.