Feat: ImgDetectionsExtended masks should be set if specified in the function call

[aljazkonec1]

When a segmentation + detection model like YOLO-P has no detections, the create_detection_message should set the masks parameter to the output shape of the model with -1 as values. This kind of mask is already created in yolo.py parser but not properly processed when no detections are found.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 33.31%. Comparing base (37a2d92) to head (fd3b592).
Report is 8 commits behind head on main.

✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
depthai_nodes/ml/parsers/yolo.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #137      +/-   ##
==========================================
- Coverage   33.40%   33.31%   -0.09%     
==========================================
  Files          68       68              
  Lines        3739     3698      -41     
==========================================
- Hits         1249     1232      -17     
+ Misses       2490     2466      -24     

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