Release v0.6.0

[jovijovi]

Features:

• (event): listener and fetcher support mint/transfer/burn events
• (event/transfer): custom cache options by config file
• (event/fetcher): retry getLogs
• (event/fetcher): custom fromBlock
• (event/fetcher/db): custom uri and table name
• (mailer): support PGP
• (mailer/template): add more details

Fixes:

• (event/transfer): returns 0 if no dump file was found when loading the cache