* child table employee expense approver
* set query in department
* mandatory approver check in hr settings
* triggers on leave and expense approver
* fetch all parent approvers from department hierarchy
* fixes
* patch to move employee approvers from employee to department
* removed hard coding of roles
* modify approvers list query
* commonified functions
* patch
* renamed standard reply occurrences
* removed leave approvers table from Employee master
* email templates for leave application notification
* set default email templates for leave in hr settings
* notify by email template
* approval status in expense claim
* render template in patch
* removed unused code
* Single child table department approver
* read instead of render template
