move setup scripts to scripts subfolder

scripts/setup.ps1

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+## enable or disable installed components
+
+$install_cuda=$false
+$vcpkg_folder=".\"
+$temp_folder=".\temp"
+
+###########################
+
+New-Item -Path . -Name $temp_folder -ItemType "directory"
+Set-Location $temp_folder
+
+# Download and install Chocolatey
+Set-ExecutionPolicy unrestricted
+Invoke-Expression ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
+choco.exe install -y cmake ninja powershell git vscode
+choco-exe install -y visualstudio2019buildtools --package-parameters "--add Microsoft.VisualStudio.Component.VC.CoreBuildTools --includeRecommended --includeOptional --passive --locale en-US --lang en-US"
+
+if ($install_cuda) {
+  # Download and install CUDA
+  Invoke-WebRequest https://developer.nvidia.com/compute/cuda/10.1/Prod/local_installers/cuda_10.1.105_418.96_win10.exe -OutFile .\cuda_setup.exe
+  .\cuda_setup.exe -s nvcc_10.1 cuobjdump_10.1 nvprune_10.1 cupti_10.1 gpu_library_advisor_10.1 memcheck_10.1 nvdisasm_10.1 nvprof_10.1 visual_profiler_10.1 visual_studio_integration_10.1 cublas_10.1 cublas_dev_10.1 cudart_10.1 cufft_10.1 cufft_dev_10.1 curand_10.1 curand_dev_10.1 cusolver_10.1 cusolver_dev_10.1 cusparse_10.1 cusparse_dev_10.1 nvgraph_10.1 nvgraph_dev_10.1 npp_10.1 npp_dev_10.1 nvrtc_10.1 nvrtc_dev_10.1 nvml_dev_10.1 occupancy_calculator_10.1 fortran_examples_10.1
+
+  $env:CUDA_PATH = "${env:ProgramFiles}\NVIDIA GPU Computing Toolkit\CUDA\v10.1"
+  $env:CUDA_PATH_V10_1 = $env:CUDA_PATH
+  $env:CUDA_TOOLKIT_ROOT_DIR = $env:CUDA_PATH
+  $env:PATH += ";${env:CUDA_PATH}\bin;"
+
+  $features = "full"
+}
+else {
+  $features = "opencv-base,weights,weights-train"
+}
+
+Remove-Item -r $temp_folder
+Set-Location ..
+Set-Location $vcpkg_folder\
+git.exe clone https://github.com/Microsoft/vcpkg
+Set-Location vcpkg
+.\bootstrap-vcpkg.bat
+.\vcpkg.exe install darknet[${features}]:x64-windows

scripts/setup.sh

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+#!/usr/bin/env bash
+
+## enable or disable installed components
+
+install_cuda=false
+vcpkg_folder="."
+temp_folder="./temp"
+
+###########################
+
+mkdir $temp_folder
+cd $temp_folder
+
+sudo apt-get install cmake git ninja-build build-essentials g++
+
+if [ "$install_cuda" = true ] ; then
+  if [[ "$OSTYPE" == "darwin"* ]]; then
+    echo "Unable to provide CUDA on macOS"
+  else
+    # Download and install CUDA
+    wget http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/cuda-repo-ubuntu1404_10.0.130-1_amd64.deb
+    sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/ubuntu1404/x86_64/7fa2af80.pub
+    sudo dpkg -i cuda-repo-ubuntu1404_10.0.130-1_amd64.deb
+    wget http://developer.download.nvidia.com/compute/machine-learning/repos/ubuntu1404/x86_64/nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb
+    sudo dpkg -i nvidia-machine-learning-repo-ubuntu1404_4.0-2_amd64.deb
+    sudo apt-get -y update
+    sudo apt-get install -y --no-install-recommends cuda-compiler-10-0 cuda-libraries-dev-10-0 cuda-driver-dev-10-0 cuda-cudart-dev-10-0 cuda-cublas-dev-10-0 cuda-curand-dev-10-0
+    sudo apt-get install -y --no-install-recommends libcudnn7-dev
+    sudo ln -s /usr/local/cuda-10.0/lib64/stubs/libcuda.so /usr/local/cuda-10.0/lib64/stubs/libcuda.so.1
+
+    export CUDACXX=/usr/local/cuda-10.0/bin/nvcc
+    export CUDA_PATH=/usr/local/cuda-10.0
+    export CUDA_TOOLKIT_ROOT_DIR=/usr/local/cuda-10.0
+    export LD_LIBRARY_PATH="/usr/local/cuda-10.0/lib64:/usr/local/cuda-10.0/lib64/stubs:${LD_LIBRARY_PATH}"
+
+    features = "full"
+  fi
+else
+  features = "opencv-base,weights,weights-train"
+fi
+
+rm -rf $temp_folder
+cd ..
+cd $vcpkg_folder
+git clone https://github.com/Microsoft/vcpkg
+cd vcpkg
+./bootstrap-vcpkg.sh
+./vcpkg install darknet[${features}]