Create Producer_Consumer.c

Producer - Consumer
The producer and consumer – running as separate threads – will move items to and from a buffer that is synchronized with these empty, full, and mutex structures.
The program has solves Producer-Consumer problem, using pthreads implemented in C language. It accepts multiple Requesters (Producers) and a single Servicer (Consumer). Each requester can make ‘n’ number of requests, both of which are inputted by the user at runtime.