Integrated of building VVC into batch files

Both shell scripts of Linux and macOS were now merged into one for detect OS with simple command
For Windows build script of Visual Studio is merged into VVCEasy.bat (batch file script).

Both files of Windows batch file & Unix shell script were able to build Fraunhofer VVC binaries.

- Martin Eesmaa

BuildVVC.sh

@@ -0,0 +1,90 @@
+#!/bin/bash
+OS=$(uname)
+echo "Martin Eesmaa / VVC Compiler (vvenc and vvdec)"
+echo "You're running on $OS of bash script version to compile VVC binaries"
+
+setup_linux() {
+    echo "Checking and installing required packages..."
+    sudo apt update && sudo apt upgrade -y
+    sudo apt install build-essential cmake -y
+}
+
+setup_macos() {
+    echo "Please make sure Xcode is installed in your Applications."
+    if ! command -v brew &> /dev/null; then
+        echo "Homebrew is not installed. Please install Homebrew and rerun the script."
+        exit 1
+    fi
+    if ! brew list | grep -q cmake; then
+        echo "Installing cmake..."
+        brew install cmake
+    fi
+}
+
+setup_msys64() {
+    echo "Checking and installing required packages..."
+    pacman -Syu --noconfirm
+    pacman -S --noconfirm base-devel cmake git
+}
+
+setup_freebsd() {
+    echo "Checking and installing required packages..."
+    pkg update && pkg upgrade -y
+    pkg install -y cmake git gmake
+}
+
+build_repos() {
+    echo "Cloning repositories..."
+    cd ~/Downloads
+
+    if [ ! -d vvenc ]; then
+        git clone --depth=1 https://github.com/fraunhoferhhi/vvenc
+    else
+        git pull -C vvenc
+    fi
+
+    if [ ! -d vvdec ]; then
+        git clone --depth=1 https://github.com/fraunhoferhhi/vvdec
+    else
+        git pull -C vvdec
+    fi
+
+    for REPO in vvenc vvdec; do
+        cd $REPO
+        mkdir build && cd build
+        if [ "$OS" = "Darwin" ]; then
+            cmake -DCMAKE_BUILD_TYPE=Release ..
+            cmake --build . -j $(sysctl -n hw.ncpu)
+        else
+            cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_EXE_LINKER_FLAGS="-static" ..
+            cmake --build . -j $(nproc)
+    fi
+    cd ../../
+done
+    echo "Please see the build files starting with (vvenc/vvdec)/bin/release-static."
+}
+
+# Main script execution
+case "$OS" in
+    Linux)
+        setup_linux
+        ;;
+    Darwin)
+        setup_macos
+        ;;
+    MSYS_NT*|MINGW64*)
+        setup_msys64
+        ;;
+    FreeBSD)
+        setup_freebsd
+        ;;
+    *)
+        echo "Unsupported OS: $OS"
+        echo "Supports Windows MSYS64, macOS, Linux & FreeBSD"
+        echo "May coming soon for some platforms..."
+        exit 1
+        ;;
+esac
+
+build_repos
+read -p "Finished building vvenc & vvdec. Press [Enter] to continue..."