update output rendering

[williballenthin]

to be merged alongside mandiant/capa-rules#14

removes references to rule-category and makes capa aware of the namespace meta key. adds modules for rendering the results in a variety of formats, including: default, verbose, vverbose, and json.

also some misc changes:

• linter: check filename matches rule name linter: filename should match rule name #7
• linter: check file path matches namespace linter: namespace should match directory structure #6
• linter: check for unusual meta fields linter: warn on non-standard meta fields #24
• setup.py: add dev dependencies move pycodestyle and other dev dependencies into setup.py #21
• git hooks: some style fixes
• main: separate verbosity from logging level separate logging level from output mode #33

default format

i don't love that the various tables have different widths. also, the ATT&CK tables tend to be a bit sparse. i may try to tweak this a bit to make things a bit tighter.

verbose format

vverbose format

i figured out how to wire up the results across subscope and match statements, making this view substantially more thorough than what we had before!

haven't yet implemented feature context, since i think we're soon going to add the context in a consistent way. i expect these changes to be ~5 line fix once context lands.

json format

all the other output formats simply translate this json format into something more pretty. so, this makes it feasible for external tools to invoke capa, parse the output, and make decisions.

[mr-tz]

🙏 very awesome! this is a great improvement! a couple of comments and ideas around outputting we can discuss further.

[Ana06]

💘

[mike-hunhoff]

A+ @williballenthin 👏. This is awesome! I love the new output formats.