add some binary search programs

[Sanga-byte29]

binary search is important

[ShreyaShukla03]

please check PR #9

[HPatel08]

Please Check PR #8

[inbuilt-aura]

Hey, @Sanga-byte29 , I would love to write some binary code for you in java if possible but i can also write in C/C++.Plzz assign me this issue.

[sabhisharma-ise]

Can you assign me this issue?

[sabhisharma-ise]

Can you please assign this issue to me?

[jay13makhija]

Admin please accept (merge) my pull request for this issue. Pull Request #11