Solved PATTERN_FINDER IN C++

[bhagyajit6]

Description

Solved PATTERN_FINDER in C++.

Test Configuration: (If any)

• Firmware version: C++ 17
• Hardware:
• Toolchain:
• SDK:

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have made corresponding changes to the documentation
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] Any dependent changes have been merged and published in downstream modules

[Aditya-150]

@lizapatra220 review it

[lizapatra220]

@bhagyajit6 keep it up.