Importing database

[imhemish]

Can you please add a function to load books and member data from csv or some database file. It would be a lot easier.

[akshaykoshy2000]

@afsalashyana Please consider merging my pull request for solving this issue, as I have added the interface and functionality for Importing books and member data from Excel files into a database with one click. The link for the pull request: #13