Add support for grade by files/paths

[adamlui]

I have monorepos I proudly display CodeFactor shields in root, but it'd be sweet (and promotes CF more) if I could add shields to individual project READMEs, but requires scanning just that dir or file and API providing pertinent request params

[cordis-dev]

@adamlui thanks for reporting, we'll look into support for monorepos.

[adamlui]

Your biggest competitor SonarCloud allows this btw. But for code quality I use CodeFactor because you're the only one that goes up to A+ (I suggested this grade scale to Codacy before, but their employees couldn't care less about great UX cuz they're paid too much)

[adamlui]

(I told them to copy you before when they were my sponsor and noticed UX slightly improved)

[adamlui]

I say this to show you are a leader in the code scanning UX worthy of and have been copied, so nothing wrong with copying SonarCloud's way of doing it