Ean Search added

[littleyoda]

A PR which allows you to search for scanned EAN/Gtin on Picnic.

from python_picnic_api2.client import PicnicAPI
p = PicnicAPI("XXX","YYY",'de');
id = p.get_product_from_gtin("4037300108293")
picnic.add_product(id)

[codecov]

Codecov Report

Attention: Patch coverage is 7.14286% with 13 lines in your changes missing coverage. Please review.

Project coverage is 64.31%. Comparing base (60f5f42) to head (cd7b051).
Report is 6 commits behind head on main.

Files with missing lines	Patch %	Lines
src/python_picnic_api2/client.py	7.14%	13 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #8      +/-   ##
==========================================
- Coverage   68.07%   64.31%   -3.76%     
==========================================
  Files           4        4              
  Lines         213      227      +14     
==========================================
+ Hits          145      146       +1     
- Misses         68       81      +13     

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[codesalatdev]

This is cool!

There's tests missing tho and I would like to change the wording a bit (product -> article). Let me know whether you want to continue working on this PR or if I should take over.

Thank you!

[littleyoda]

You are welcome to take over the PR. I think that will get you there faster than if we first clarify what you want to have changed.

[codesalatdev]

Superseeded by #11. Thank you!