simple api to track candidate information and store them in a csv file
#Assumptions: as from requirement the app should check if the user exits add or create the record of the candidate then i have not created a update method in the candidates api as it done automatically on the repository if the record is found it updates and if not found it creates a new record
#Nugets Used
*CsvHelper
*Moq
*Fluent Assertions
*Lazy cache