Add queriesRunner

[crianonim]

Function that let's you run an array of queries synchronously with optional parameters

Dear DFIO,
I am suggesting a solution to one of your problems. I know you already solved it differently, but maybe just have a look. This way you still can execute your queries in order and have them all used parametrized queries. I read that Postgres executes one at the time anyway.
This is your project so I would expect you to instead just merging this PR, just check out my branch and play with it copy,paste etc. without my commit. That is if you like my solution and more importantly if you want to continue this project.
This problem would be solved even easier (and be more readable) if you didn't mind playing with Promises... (I can elaborate if you care)

[jackbridger]

love the way you wrapped the variables and the query in an array

Will try and spend some more time looking at this to make sure I properly understand everything