* -Added field def_warehouse that sets warehouse of all items
-Grouped warehouse fields together and put raw materies supplied before items table, it will only show if there are any items supplied
* Set def_warehouse in test_sales_order.py
* Changed from def_warehouse to set_warehouse
* Rest of def_warehouse to set_warehouse
* Update transaction.js
* setup barcode scan
stock entry controller not inherited from transaction.js, need to call setup barcode scan from transaction.js
* fix bug of item_code change always reset qty to 0
when calling frappe.model.set_value(dt,dn,'item_code',xxx), even qty is set, system always reset qty to 0.
* Update transaction.js
* Update transaction.js
* Update transaction.js
* Update transaction.js
* Update transaction.js
* Update transaction.js
* clean up barcode logic for transactions
* call scan_barcode method for stock entry
* separate out logic for searching serial, batch or barcode number
* added scan barcode field in transactions doctype
* search barcode-serial-batch sequence, code rectify
* hide all barcode related field if disabled from settings
* remove print statement
* Update stock_entry.py
* Minor fix for the problem that Net Total, Net Rate, Net Amount field would not be shown when default taxes were fetched
* Prevent net_rate from becoming NaN
* -Fixed problem that party_account_currency was not set in mapped document
-Fixed problem that discount amount was not recalculated (in mapped document)
-Fixed problem that set_dynamic_fields would work only on certain condition that led to showing Total (Company Currency) field even when using company currency
* 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
