Abstract and standarize getTransaction() method

[phoenix-web3]

• I have read the Contributing file of the documentation.
• I have searched the issues (including closed ones) and believe that this is not a duplicate.
• I am willing to lend a hand to help implement this feature.

Feature Request

Feature Description

The enpoint "getTransaction" needs to be standardized for all coins. For that, I've created the following standard, subject to changes.

"transaction":{
   "fee":"xxx",
   "block":"xxx",
   "data":"xxx",
   "transfers":[
      {
         "fromAddress":"xxx",
         "toAddress":"xxx",
         "fee":"xxx",
         "amount":"xxx"
      },
      {
         "fromAddress":"xxx",
         "toAddress":"xxx",
         "fee":"xxx",
         "amount":"xxx"
      }
   ]
}

All of the objets above are self-explaining.

• The unit of the fee, as in all the project, would be in the lowest unit of the currency (satoshi in btc or wei in ethereum).
• Each of the transfers have its own fee, depending on the amount of the global fee provided by the sender.
• The "data" object will contain the specific information of the currency (f.e.: fee per byte, size, gas price...)
• "transaction" will be null when the specified txid does not exist.
• "block" will be null when unconfirmed.

[hippocampusSwapper]

It would be nice if you could put a PR to reflect these changes also in the client-side package.

Package: https://github.com/swapper-org/swapper-core/tree/develop/packages/swapper-nodechain-client
Docs: https://hippocampus.gitbook.io/swapper-1/repositorio-monorepo/packages/swapper-nodechain-client