♻️ Update Changes from New Engine Design

[shaneahmed]

• Add changes from New engine design ⚡ Improve Engine Performance and Implementation #578. This will not only simplify the PR but also keep the main repo up to date.
• Refactor model_to to model_abc
• Instead of on_gpu use device as an input in line with PyTorch.
• infer_batch uses device as an input instead of on_gpu

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.90%. Comparing base (32cae0b) to head (f68a29f).
Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #882      +/-   ##
===========================================
+ Coverage    99.88%   99.90%   +0.02%     
===========================================
  Files           69       69              
  Lines         8717     8705      -12     
  Branches      1149     1149              
===========================================
- Hits          8707     8697      -10     
+ Misses           4        3       -1     
+ Partials         6        5       -1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

---

🚨 Try these New Features:

• Flaky Tests Detection - Detect and resolve failed and flaky tests