Changelog:
============
-Drop python 3.7 support
-Merge updates from the project template, notably: use pre-commit for linting
and change the name of the master branch to main
-Fixed booleans in pyproject.toml and added a test for the presence of the
eth_typing.__version__ attribute
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
