-Item Default Precedence: Get defaults from Item Group, if no default, fetch from Brand
-Remove auto set Item's Item Defaults from Item Group: Item Default should be manually entered to override both Item Group and Brand defaults
* added section for deferred expense in item master
* added default expense account field in Company master
* added deferred expense section in purchase invoice item
* validation and getter code added
* scheduler event to book expense every month
* codacy, import fix and other minor fixes
* rectify debit credit logic for expense
* commonify js code for deferred expense and revenue
* remove deferred calculation and validation
* common file to calculate deferred revenue and expense
* codacy fixes
* expense account root_type - Asset, specific method naming
* fields added for delivery by Serial No
* SO - validate item for delivery by Serial No
* Stock Entry - add Serial No on production, validate reserved consumption
* add item by reservation to transaction if delivery by Serial No
* SLE - validate reserved Serial No by SO in Delivery Note, Sale Invoice
* Sales Order - validate Ensure Delivery by Serial No
* Serial No - remove SO ref on cancel
* [IMPROVEMENT] Item Price New Fields and Features
* [IMPROVEMENT] Item Price
- Item Price insert against Qty, Supplier/Customer, Validup/Validfrom
- Stock Setting to accept Default Price List for Purchase or Sales Item
- Move Item Section in Item Price
* Fetch default Item Price based on Customer as null
* test fixes
* Code cleanup and fixed the issue of incorrect item price fetched against the customer
* Removed min qty from packing_increment calculation
* Removed auto_update_price_list_rate from the stock settings
* Revert sales_order.json changes
* Removed sales, purchase price list from stock settings because this fields are already available in selling, buying settings
* Removed unnecessory file
* Fixed item price validation code
* Add Defaults table in Item Group
* Fetch defaults from Item group if not found in Item
* Add patch
* Remove default fields from Item Group
* Set query for defaults
* Fix Codacy
* Modify test records
* Modify budget.py and sales_order.py
* Remove join from query
* Else condition to avoid error if no defaults found
* refrain from making item test records before item_group
* default cost center fetch correction
* Remove tab item group from query
- Creaete Sales or Purchase order from the blanket order
- If there is any blanket order for the customer/supplier rates will be fetched from that order
- Manually selecting the Blanket order will change the rates accordingly
- Upon submission of the order, the ordered qty will be updated in the Blanket Order
