CLI error state handling and retries

[0xean]

Files:

• Store all files in a common location in users home directory
• Handle error writing file (exit with data logged to console for recovery/manual save)
• Create all files as read-only to reduce the chance of accidental deletion

Mnemonic:

• Handle password match on create (retry 3 times -> exit on error)
• Warn user for redundant backup (keystore + manual recovery mechanism via mnemonic)
• Handle recovery from keystore (default location), keystore (manual file location), mnemonic (retry 3 times -> exit on error)

Wallet:

• Handle hot wallet funded state for distributions that have not started, partial distributions, or complete distributions
• Handle mismatch state between number of transactions in distribution vs number of txs signed/broadcasted.
• Sign transaction are all or nothing (ie. we won't write state file unless all txs have been signed successfully)
• Handle picking up from completed sign transaction step (begin broadcasting transactions)
• Handle transaction broadcasting:
  • Write all success txids for each run (allow partial broadcast)
  • Pick up from partial broadcast and continue attempting to broadcast remaining txs
  • Handle error broadcasting transaction

IPFS:

• Handle invalid epoch IPFS hash (exit on error)
• Handle invalid epoch IPFS contents (exit on error)
• Handle invalid metadata IPFS hash (exit on error)
• Handle invalid metadata IPFS contents (exit on error)
• Confirm metadata update of existing epoch ipfs hash

General:

• Re-running the script after an error will pick up from the existing state files (wallet recovery, funding step, distribution step)
• Attempt to start a new distribution for the same epoch if an in progress distribution is detected will throw a waning requiring action before continuing