Make Query Generators Into Dynamic Modlues

Move bingQueriesGenerator to queryGenerators folder
main.py add queryGenerators folder to PATH
Add <queries> tag to config file
Modify config.py to read <queries> tag
Make bingQueriesGenerator dynamic loadable
I prefer to make 2 pulls. That way someone reading the log can see the progression. That way if they want to input their own search they can have a modular engine without having to use my wikisearch by default.
I just finished the wikisearch on top of this code. if you pull this. I can rebase and make another pull request.