Port to C++ : OpenCV overview

[meshtag]

Is your feature request related to a problem? Please describe.
We have a section covering some important introduction topics from OpenCV. This section covers all of them in Python atm, as discussed in thread thread, we need to port it to C++.

Describe the solution you'd like

• Convert all relevant programs in this file to their equivalent C++ versions using OpenCV's native API wherever required.
• Add theory related to OpenCV's C++ APIs in accordance with current Python APIs present inside the above mentioned file.
• Create a makefile to build and compile related executable(s).
• Maintain a .md file for theoretical part (and depicting expected results) as well.

[sarrah-basta]

I'll work on this part and the programs in the file prior to masking as that is covered in a seperate issue

[Om-Doiphode]

I have issued a PR here