As a Developer I want to create and sign transactions from the mina-frontend

[directcuteo]

The requirement is to create many transactions in order to test the network's limitations.

This requires a couple of new subtasks from the frontend application:

• Create a NodeJS library that uses mina-signer (https://www.npmjs.com/package/mina-signer) to sign and prepare a transaction
• Publish the library and import it in Mina-frontend
• Prepare GraphQL mutation API
• Create the mutation body for sending a transaction and set the parameters
• Create Faucet wallets and send tokens a lot of times

[directcuteo]

• [x] Prepared mina-signer integration in the Angular app
• [x] created GraphQL generic mutation handler
• [x] mutation body for sending a transaction with parameters
• [x] created 100 Faucet wallets for sending tokens in the background
• [x] sending of transactions in the background
• [x] created interval and batch inputs for the user to send transactions
• [x] created all Models and NgRx-related files for the new stressing module
• [x] Created a list of transactions with updating from several endpoints
• [x] Used mina-signer to sign the transactions