add solution to (minimum-number-of-days-to-make-m-bouquets) problem o…

[TheNourhan]

…n leetCode with c++

Fixes issue:

Changes:

add new algorithm using binary search. solution of (minimum-number-of-days-to-make-m-bouquets) on leetCode with c++ link: https://leetcode.com/problems/minimum-number-of-days-to-make-m-bouquets/

[TheNourhan]

please put on (hacktoberfest) tag