[WIP][Refactor] All vision pipelines sharing common functionalities

[dbogunowicz]

This PR:

• Creates a common directory "vision" that contains: schema blueprint for all vision pipelines, utils shared between vision pipelines, utils for coco and imagenet dataset, utils for vision pipelines annotations
• Refactors and simplifies the image_classification/yolo/yolact code for schemas, pipelines and annotation.

Test Plan: Manual

• [x] Test that the refactor roughly "works" (single images give plausible predictions/annotations (they just look correct))
• [ ] Thoroughly test the refactor for various scenarios
• [ ] Include @KSGulin remark:

Automated N/A