added leetcode 456_132Pattern solution

[Dushyant100]

@tanyagupta0201 ma'am I have added the solution to leetcode problem : https://leetcode.com/problems/132-pattern/ for hacktoberfest2022. Please verify the code and approve the merge request. Signed-off-by: Dushyant100 dushyant01agra@gmail.com

[Dushyant100]

I have already raised the issue, issue number #598

[tanyagupta0201]

just give a space between # and first word. And in line 13, need to give space after comma.

[Dushyant100]

Okay ma'am