* adds Material Request to `status_map`
* updates eval condition for Partially Ordered in Material Request map
* changes material_request doctype to include "pending", "ordered", "partially ordered", "issued", "transferred" as options
* adds more options to `validate_status`
* adds `set_status` just before saving
* adds `check_for_closed_status` in `before_cancel`
* adds patch to convert status to material request specific status
* adds stricter status update conditions
* changes `update_status` to me `set_status`
* adds checker such that draft status can only change to pending
* renames `check_draft_status` to `status_can_change`
* adds Cancelled to Material Request map
* makes `status_can_change` block any attempt to change a cancelled document
* adds more test cases
* updates what `set_status` checks for before adding comment
* adds patch to rename the present material request status
* [enhance] added Sales Invoice reference in Serial Number
* [patch] added test cases for Sales Invoice and added patch to copy sales invoice
* [minor] minor fixes in validate_serial_against_delivery_note
* [minor] fixes in sales invoice serial number validation
* Move allowance field in Item to the first section to apply it for both stock and non-stock items
* Fix status of invoices with negative outstanding, if no return entry
* get_value included in safe_eval
* deleted student batch creation tool
* Patch for deleting the doctype and config
* Changes in the student attendance
* Patch for renaming the student batch as student group
* Changes in the student attendance
* Change in the student attendance reports
- Absent student report
- Student Batch-wise attendance
- Student monthly attendance sheet
* Changes in the patch
* Changes in the course schedule
* Changes in the course scheduling tool
* Change in the assessment plan
* Changes in the assessment result tool
* Cleanup
* Changes in the api.py
* create student group from student batch
* delete student batch
* add patch
* remove student batch from config/schools.py
* Delete the depricated doctype with patch
* Changes in patch
* Changes as per PR
