Introduce Faker.Net for mocks and Tests package

[guneshpatil]

• use Faker library to add data variations in the tests and mocks being set
• also, refactor multiple usage of WireMock server url with constant

[basdijkstra]

Looks good to me, @guneshpatil, good luck! Let me know if you need any help. Looking forward to the pull request.

[basdijkstra]

Merged, so closing this issue now.