fix examples

[JSabadin]

Purpose

Aligning the examples with the current luxonis-ml version.

Specification

Dependencies & Potential Impact

Deployment Plan

Testing & Validation

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.07%. Comparing base (d2c0a11) to head (8278b68).
Report is 2 commits behind head on main.

✅ All tests successful. No failed tests found.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #256   +/-   ##
=======================================
  Coverage   96.07%   96.07%           
=======================================
  Files          96       96           
  Lines        5116     5116           
=======================================
  Hits         4915     4915           
  Misses        201      201           

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[klemen1999]

Could you also update the README in luxonis_ml/data? We should make the "adding data" code block more informative (can be something similar to example here). Also the Annotation format needs to be updated (the type is not used anymore, also other parts). Also the Usage with LuxonisLoader needs updating.
Overall let's make sure all the docs are up to date