Completed appointment booking from patient side.

backend, documentation, deployment - @Animesh.Aditha ; landing page - @AnishKulkarni ; login template - @Animesh.Aditha ; doctor signup - @Rohitkk432 ; clinic signup - @udaysingh50 @AnishKulkarni ; patient signup - @Mperorrrc; appointments landing page/ Patient booked Appointments Display page - @saraswatjha ; clinic choosing - @AnishKulkarni ; doctor choosing - @udaysingh50 ; slot choosing - @f20200700 ; design of pages assisted by - @Utsav , @Gowtham_bits, @GREESHMANTH Frontend leaded by - @Rohitkk432 Frontend Logic , API requests - @Rohitkk432

Disclaimer - patient login left to implement so as of now patient_id = 1 is hardcoded for API calls