* add doctypes allowed to group items, average the rate
* add check field to group items during print
* call common before_print in delivery note
* fix precision issue while calculating average
* Patch: Create Payment Terms based on default credit days set in company and use it while setting due_date
* Payment Terms patch for credit days defined in customer group
* validate schedule dates in non-invoice documents
* change query for orders
* take care of orders with/without payment schedule
* clean up, refactor, PEP8
* Revert "test fixed (#12094)"
This reverts commit dd700a550f.
* Revert "[fix] Column Heading in received item to be billed report (#12083)"
This reverts commit 7c57b6ecd8.
* Revert "[fix] Mobile no search issue in the pos (#12090)"
This reverts commit b725affe0c.
* Revert "[Fix] Payment terms validation issue (#12092)"
This reverts commit 9b8e1cb10e.
* [enhance] Opening Invoice Tool create Opening Sales/Purchase Invoices
* [minor] added progress bar while creating invoice
* [minor] allow bulk upload for the invoices
* [minor] calculate item rate from net total
* [minor] added defaults for invoices fields, create gl entries only if grand_total is greater than 0
* [minor] check mandatory values before making opening invoices
* [minor] enable primary button if there is any error while creating invoices
* [minor] minor fixes, set company currency as invoice currency added tests
* [dashboard] added Opening Invoice Summery section in Dashboard
* [minor] added total invoices count on dashboard
* [minor] don't show dashboard if there are no opening invoices available
* [minor] added Opening Invoice Tools to Account's Tools section
* [minor] codecy fixes
* [fix] refactored general ledger and buttons on charts
* [fix] tests
* [Enhance] Subscription module
* Added view documents from the subscription form
* Test cases
* documentation
* UI Test cases, fixes
* Removed child table in the subscription
* Provision to make subscription from the document, added subscription in the dashboard for the sales and buying flow
* added patch to make subscription from the recurring data
* Rename field subscriptio to subscription_id, added new test cases, remove recurring_document from controller
* renamed subscription_id to subscription
