* Make notes widget "generic"
- No longer tied to the "part" model
- Will allow us to use it elsewhere
* Update release notes
* Add helper methods for checking model permissions
* Refactoring of permissions checks
* Add notes to the "purchase order" widget
* Fix typos
* remove bom tab from part view
* linting fixes
* Bug fix in API forms
- Allow form fields to specify custom filters at runtime
* Add "contact" model to purchase order edit form
* Add action to create new purchase order from list widget
* widget updates for purchase order
* Adds a helper function for rendering currency data
* Update helper functions for StockItem model
* Render purchasePrice correctly for stockitem
* Use currency_formatter library instead of money_formatter
* Add total price display for purchase order
* icon fix
