boolean expression evaluation

[pnocera]

Hello,

I added a generic boolean expression evaluation feature adapted from https://github.com/hashicorp/js-bexpr/

You can check it here https://github.com/pnocera/micro-jq if it's of any interest.

example usage in the tests here
https://github.com/pnocera/micro-jq/blob/main/test/evaluate.test.ts

Thanks