Add S3/ObjectStore metrics

[ddl-gabrielhaim]

Description

ObjectStore operations can only log content processed from the SDK

Type of Change

• 📚 Examples / docs / tutorials / dependencies update
• 🔧 Bug fix (non-breaking change which fixes an issue)
• 🥂 Improvement (non-breaking change which improves an existing feature)
• 🚀 New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 🔐 Security fix

Checklist

• I've read the CONTRIBUTING.md guide.
• I've updated the code style using make codestyle.
• I've written tests for all new methods and classes that I created.
• I've written the docstring in Google format for all the methods and classes that I used.

[github-actions]

✅ Result of Pytest Coverage

---------- coverage: platform linux, python 3.8.12-final-0 -----------

Name	Stmts	Miss	Cover
domino_data/init.py	6	0	100%
domino_data/auth.py	56	3	95%
domino_data/data_sources.py	260	21	92%
domino_data/logging.py	8	0	100%
domino_data/training_sets/init.py	0	0	100%
domino_data/training_sets/client.py	125	11	91%
domino_data/training_sets/model.py	42	0	100%
TOTAL	497	35	93%

~ 35 passed in 4.56s ~