combined the job positions and education degrees from different sections into one list. Also cleaned the code

Add the confidence calculation using extracted fields number and total interested fields number. This is added in body pattern method.

Add check empty extracted experience section. If it's empty, skip it.

Add all the functions to the test_util_new.py, prepare clean the code

Can segment education and add it to main function

In the experience section. the first title add a filter to check whether the first title is a body. The title can't be a body.

If the end time didn't captured, set it to empty

can segment the experience into different positions

1. removed non-year numbers
2. removed all empty bodies

1. separate extracted time into beginning and end
2. take into account more variations.