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
The current code here works but I can take out `package="pkg.queryGenerators"` on line **236** of **bingRewards.py**. That way it wont mess with you when you convert everything to packages.