v0.4.2

Usage changes

• Introduce utility functions for handling L1-L2 communication (postman message exchange with Devnet):
  • starknet.devnet.loadL1MessagingContract - for loading an L1 contract that exchanges messages between L1 and L2
  • starknet.devnet.flush - for propagating messages to the other layer
  • Basic example
  • Complex example
• Introduce an Account class for invoking/calling contract functions through an Account. Create Account using utility functions:
  • starknet.deployAccountFromABI - for new Account deployment
  • starknet.getAccountFromAddress - for loading a predeployed Account
  • Basic example
  • Complex example

Dev specific changes

• None

PRs merged

• Postman by @badurinantun in #58
• Account enhancement by @dribeiro-ShardLabs in #62
• Reflect flush resp with l1 and l2 messages by @FabijanC in #66

Full Changelog: v0.4.1...v0.4.2