makefile

When integrating with other tools (like vscode extension, or when trying to script exporting tasks to github actions) we really want to avoid having to parse the free-form output, especially as this will likely change and break integration, even between minor versions.

If we would output as JSON, we can make the parsing far more reliable and less likely to break between versions, especially as

Currently, if I run bake command when the Bakefile is empty, the error message seems very scary:

Traceback (most recent call last):
  File "/home/redowan/.local/share/virtualenvs/flask-template-wBuRwttx/bin/bake", line 8, in <module>
    sys.exit(entrypoint())
  File "/home/redowan/.local/share/virtualenvs/flask-template-wBuRwttx/lib/python3.7/site-packages/click/core.py", line 764,