Changeset 53bb3e5 in OpenWorkouts-current for ow/fit.py

(#13) - fit files parsing + (#26) - generate .gpx from .fit

• Added fitparse as a new dependency IMPORTANT: please install it in your existing envs:

pip install python-fitparse

• Added new attribute to workouts to store attached fit files as Blob objects. IMPORTANT: please update any workouts you have in your db, adding the fit_file attribute to them (None by default)

• Added new module with the code needed to interact with .fit files (parse, gather data, transform to gpx)

• Added code to "load" a workout from a fit file

• Added tools and helpers to transform values (meters->kilometers, meters-per-second->kms-per-hour, semicircles-to-degrees, etc)

• Refactored some imports