Add One click installation

[AlexeyAB]

Add One click installation

• One file (one for Win, one for Linux) - just for installation Darknet
• One file (one for Win, one for Linux) - just for installation all dependecies (Cmake, MSVS, CUDA, cuDNN, OpenCV, may be new Pthread and STBlib) and Darknet

A total of 4 files (or fewer if there is better solution).

[vrnvorona]

Really appreciate this ToDo since it's quite a pain to install all things, thanks for thinking about it.

[AlexeyAB]

Experimental: #5717

• scripts/setup.ps1 - Windows

• scripts/setup.sh - Linux / MacOS