feat: Bulk Salary Structure Assignment

[krantheman]

Bulk Salary Structure Assignment

This PR introduces the Bulk Salary Structure Assignment DocType, a replacement and enhancement to the Bulk Salary Structure Assignment Dialog.

The Problem - Bulk Salary Structure Assignment Dialog

Issues with the BSSA Dialog include, but are not limited to:

• Inability to select specific Employees.
• Inability to set varying Base & Variable amounts for different Employees.
• Limited filtering options.
• Prerequisite navigation to a Salary Structure document.
• Potential loss of progress due to clicking outside.

The Solution - Bulk Salary Structure Assignment DocType

bulk-salary-structure-assignment.mp4

Tackling the aforementioned issues, features of the BSSA DocType include:

• Ability to select specific Employees.
• Ability to set varying Base & Variable amounts. This can also be done in bulk via row selection.
• Addition of the Filter Group component to set complex Employee filters.
• Ease of navigation and selection of any Salary Structure from within the page.
• Automatic fetching of Default Base Pay of Employees based on their Grade.
• Identification of Employees without preexisting Assignments for a specific date.

Miscellaneous

In this PR, I have also:

• Edited the Create -> Bulk Assignments button in Salary Structure to redirect to the BSSA DocType.
• Added Bulk Salary Structure Assignment to the Salary Payout workspace and the Salary Structure List View.
• Commonified the notify_status function by moving it from leave_control_panely.py to utils.py.
• Commonified the create_employee_grade function by moving it from test_salary_structure.py to test_utils.py.

Documentation

https://frappehr.com/docs/v14/en/salary-structure-assignment-tool

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 79.38144% with 20 lines in your changes are missing coverage. Please review.

Project coverage is 72.85%. Comparing base (cd6b82a) to head (153774a).
Report is 41 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #1367      +/-   ##
===========================================
- Coverage    73.06%   72.85%   -0.22%     
===========================================
  Files          201      202       +1     
  Lines        11046    11153     +107     
===========================================
+ Hits          8071     8125      +54     
- Misses        2975     3028      +53     

Files	Coverage Δ
...doctype/leave_control_panel/leave_control_panel.py	86.44% <100.00%> (+3.95%)	⬆️
...yroll/doctype/salary_structure/salary_structure.py	80.31% <80.95%> (-1.00%)	⬇️
hrms/hr/utils.py	78.32% <60.00%> (-1.13%)	⬇️
...ure_assignment/bulk_salary_structure_assignment.py	84.31% <84.31%> (ø)

... and 7 files with indirect coverage changes

[ruchamahabal]

Very clean implementation overall 👏

[ruchamahabal]

enqueue function should be accessible outside the class (public function). Also a message to inform the user that its enqueued

Can you make this change? Just test it once by enqueuing irrespective of the number. Also lets enqueue if its > 30

[ruchamahabal]

ERPNext install is failing on develop. Merging this as its unrelated and tests are passing locally