Auto check and create job table

[kritzware]

Instead of making the user call the method createTable(), the library could check if the table exists once connected and then call this function internally if not.

await ox.createTable()

[avermeil]

That's interesting... is there much of a cost to calling

CREATE TABLE IF NOT EXISTS oxen_queue

for every instance of Oxen?

[gaurav8298]

No, I don't see anything wrong with create table if not exist, rather this is a safe and good programming.
About auto checking, Yes, it will be a good thing to do that.

Also, it would be nice if, we can pass a connection to the new Oxen() constructor. Most of the time, projects that would be using this library would already have a connection setup to the MySQL DB, so it's will be quite nice and effective if the same connection could be reused rather than creating a new connection to the DB.