* [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
* field for company margin
* added base_rate_with_margin
* calculate company margin
* test for item price
* test for delivery note
* test for sales order
* test for quotation
* test for sales invoice
* [hotfix] dont allow guest user to list the invoices or orders
* [hotfix] fixed Not Permitted issue for System user while accessing documents on portal
* [codecy] removed trailing whitespace
* [fixes] added filters for supplier in RFQ and other minor fixes
* [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
* Use Python 3 style print function
* Use 'Exception as e' instead of 'Exception, e'
* Unpack tuple arguments explicitly in instead of relying on auto unpacking
* Use consistent indentation
* Use 0 if stock_frozen_upto_days is None
* Adjust rounding loss of discount in the last item row. Fixes#8952
* Fixed rounding issue in tax calculation. Fixes#8953, #8952, #8893, #6954, #8910
* Rounding related fixes for purchase cycle
* Multiple delivery dates in Sales Order and make DN based on selected delivery dates
* Test case and some other minor fixes
* Updated docs for multi delivery date
* removed the trailing whitespace
* removed the trailing whitespace
* removed trailing whitespace