[WIP] Better Readme and Binder testing

[gmaze]

This is about the commits I've made after v0.1.0 on the master branch
Not ready to merge, need to fix some Binder issues with the ancillary data.

[codecov]

Codecov Report

Merging #3 into master will decrease coverage by 3.05%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master       #3      +/-   ##
==========================================
- Coverage   91.38%   88.32%   -3.06%     
==========================================
  Files          65       34      -31     
  Lines        3145     1928    -1217     
==========================================
- Hits         2874     1703    -1171     
+ Misses        271      225      -46     

Flag	Coverage Δ
#unittests	88.32% <0.00%> (-3.06%)	⬇️

Impacted Files	Coverage Δ
setup.py	0.00% <0.00%> (ø)
...alibration/signal_variance/signal_variance_test.py
...n/get_region/data_functions/wrap_longitude_test.py
ow_calibration/find_10thetas/find_10thetas_test.py
...plot_diagnostics/sal_var_plot/sal_var_plot_test.py
ow_calibration/set_calseries/set_calseries_test.py
ow_calibration/get_region/get_region_data_test.py
..._calibration/noise_variance/noise_variance_test.py
...bration/get_region/data_functions/get_data_test.py
...ration/calc_piecewisefit/calc_piecewisefit_test.py
... and 23 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update fef54bb...8075df8. Read the comment docs.

[gmaze]

Changes summary from this PR:

• Clean binder environment testing, click it, launch it, test it: it works.
• Initial set-up for the software distribution packaging. Current version is 0.1.0. THIS IS NOT OVER YET. It still need internal refactoring to make this right.
• Delete the ow_calibration.py script at the root level. With a proper packaging, this is not necessary, users don't run the code from the software folder. Content of this file goes into the README for documentation.
• Created a docs/Tryit.ipynb notebook to get user started