Moved 'check_ip_ver' function to easysock.c

easysock.h

@@ -50,5 +50,9 @@ It prints the error returned by 'connect' if something went wrong, and exits wit
 
 int create_remote (int network,char transport,char* address,int port,struct sockaddr* remote_addr_struct);
 
+/* check_ip_ver - This function checks if the given string is an IPv4 address (returns 4), 
+IPv6 address (returns 6) or neither (returns -1).
+
+int check_ip_ver(char* address);
 
 #endif