Incorporate new fixes and features in v2 into v3

[MCKIN-8350] Incorporate recent changes in problem-builder v2 into pr…

…oblem-builder v3 (#222)

* MCKIN-8751: Add markers to set completion criteria.
* MCKIN-8666: load users eagerly (#208)
* [BB-643] Fix the StopIteration exception error (#218)

Fix the error causing the instructor tool report generation to fail

Fix the error causing the instructor tool report generation to fail

v2.11.1

[BB-643] Fix the StopIteration exception error (#218)

* Fix the StopIteration exception error
* Bump the version to 2.11.4

v3.1.5: YONK-1219 - Code optimization for more performance (#217)

calculate_results and student_view_data method optimized to fetch tips only if hide_results is set to False

v2.11.3: YONK-1219 - Code optimization for more performance (#216)

* Code modified to fetch Tips only once for every MRQ problem
* student_view_data API optimized to fetch tips only if hide_results is set to False

v2.11.2

version bump to 2.11.2 (translations update) (#215)

Complete on submission

Merge pull request #210 from open-craft/cliff/mckin-8751-fix-pb-compl…

…etion-modes

MCKIN-8751: Add markers to set completion criteria.

v2.10.4

updated version to 2.10.4 (#206)

Fix issues in theme removal

Merge pull request #203 from open-craft/kshitij/mckin-7493-restore-ap…

…ros-pb-theme-v2

Removed the themed-xblock selector to allow overrides by themes

v2.10.0

Change version to 2.10.0.