feat: starkli support for declaring and deploying account

[ICavlek]

Since beerus is a middleware, it is necessary to support starkli that is user interface for interacting with starknet. It has to be investigated and decided how it is going to be: from env via .sh script, as docker image or it will be imported as a library directly in the test. Following features should be supported:

• starkli signer - for creating public/private key
• starkli declare - for declaring account contract
• starkli invoke eth transfer - for funding new account
• starkli deploy - for deploying account contract