add Supply model&controller
add show supplies function
modify typo
add view supply function
modify Supply Model validation
add add supply funciton
modify typo
add update supply function
refactor impl
add delete supply function
modify show supply size
add show product stock function
Merge branch 'feature/Supply' into develop
fixed link uri
modify validate
add Order model&controller
add show ordes function
add show order function
add add order function
add edit order function
add delete order function
modify show product stock function
remove Product<->Order&Supply association
refact calc stack