As an admin of the barcode plugin, I'd like to turn off the encryption

[binary1230]

Need a config option to turn off the encrypt/decrypt step.

We'll need this for magwest where the badge# is the barcode.

It should be relatively easy, basically have a config option that just turns the following two functions into NOOPs:
https://github.com/rams/barcode/blob/master/barcode/barcode_utils.py#L53
https://github.com/rams/barcode/blob/master/barcode/barcode_utils.py#L96

should just look like:

def generate_barcode_from_badge_num(badge_num, ...snip...)
   if c.USE_BADGE_NUM_AS_BARCODE:
       return badge_num
   # insert rest of function here
   .....snip.....

def get_badge_num_from_barcode(badge_num, ...snip...)
   if c.USE_BADGE_NUM_AS_BARCODE:
       return badge_num
   # insert rest of function here
   .....snip.....

[binary1230]

context: we need it for magwest, prior to going onsite