make_iaga app and BIQParserFactory

The major changes of this merge request include:

1. make_iaga.py:

•   Converts BIQ QD file to stream

•   Pulls observatory metadata from webservice and adds to stream

•   Splits stream by days then writes IAGA min files

2. BIQParserFactory.py:

•   Makes BIQ class with fields based on Geomag BIQ QD file

•   converts BIQ data to ObsPy Stream 

3. Some changes to IAGA2002Writer.py:

•   Added a function to trim a stream to 4 channels

•   Added try and if statements to deal with how different versions of Python write bytes or str (more info found in Jeremey's Controller_test which was initially failing).

I have tested this pretty thoroughly and it works as intended, but I will also test it against Duff's program during the next round of QD uploads to compare any differences in headers/numbers and whether or not they are acceptable.

The only major problems I foresee in the future is if the webservice is down or if the observatory metadata is incorrect based on bad user input in the new GeomagOperations app.

Adding @bgeels since I cannot add multiple reviewers.