create a plugin for the pre-commit framework

[eyarz]

Is your feature request related to a problem? Please describe.
Sharing Datree's pre-commit hooks across projects can be painful because it requires copying and pasting unwieldy bash scripts.

Describe the solution you'd like
The pre-commit framework was created to solve those hook issues.

Additional context
Creating new hooks.
Related to #125

[kevholmes]

Hi there! I've set up pre-commit hooks and worked with custom hooks before for a number of projects and really like it. I'd like to take a look into this.

[eyarz]

@kevholmes go for it :)

[kevholmes]

If I wanted to add some documentation on how to use the pre-commit hook where might be a good place? @eyarz

[eyarz]

Unfortunately, the docs are not open source (the platform that I'm using is not supporting it 😞), so just add your instructions to your PR and I will copy it from there (just like you did).