initialUpload

Changes to domain IEmployeeRepository
Merge pull request #17 from CIT275DevGroup/sprint2-domain

initialUpload
Added overload for ViewModel Constructor
changesToEmployeeService

changes to EmployeeService class
moreChangesToEmployeeService

More changes to EmployeeService
Encapsulated in IProductService
Switch to IProductService interface
Added Tests for MWVM
addSaleStuff

Added Sale, SaleDTO, SaleRepository interface, and SaleService classes
Refactored AddTransactionItem
Qty defaults to 1
Added Testing Suite for MWVM
addedServiceInterfaces

Interfaces added for service class, interface folder structure changed
slightly, namespaces adjusted
addSaleStuff

Added Sale, SaleDTO, SaleRepository interface, and SaleService classes
addedServiceInterfaces

Interfaces added for service class, interface folder structure changed
slightly, namespaces adjusted
Encapsulated in IProductService
Switched to db team IProductService
Forgot to save changes to ProductService
addFinalizeSaleMethod

Added FinalizeSaleMethod to SaleService class, also added selling price
to sale business class and saleDTO class to reflect changes to database.
Merging MWVM-Improvements