Add ./bin/pylint tool

[sergiitk]

For now, requires manual extra steps to install.
Once it's upgraded to the point where it can be included into requirements-dev.txt, the script will be simplified.

[sergiitk]

Output example:

❯ ./bin/pylint.sh
+ pylint -rn bin framework

--------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)

+ pylint --rcfile=./tests/.pylintrc -rn tests

--------------------------------------------------------------------
Your code has been rated at 10.00/10 (previous run: 10.00/10, +0.00)

+ exit 0