WSLg build integration (DO NOT UPSTREAM)

yml file used in WSLg Azure build pipeline. Sould remain in WSLg project to
avoid poluting upstream project with this file.

azure-pipelines.yml

@@ -0,0 +1,87 @@
+# This pipeline will just build FreeRDP to be sure we dont break
+
+  trigger:
+    - working
+    
+  pool:
+    vmImage: 'ubuntu-latest'
+    
+  steps:
+    - checkout: self
+  
+    - script: sudo apt-get update && sudo apt-get install --no-install-recommends -y
+              build-essential
+              cmake
+              git
+              libcairo2-dev
+              libcolord-dev
+              libdbus-glib-1-dev
+              libdrm-dev
+              libffi-dev
+              libgbm-dev
+              libgles2-mesa-dev
+              libgstreamer-plugins-base1.0-dev
+              libgstreamer1.0-dev
+              libinput-dev
+              libjpeg-dev
+              liblcms2-dev
+              libpam-dev
+              libpango1.0-dev
+              libpixman-1-dev
+              libssl-dev
+              libsystemd-dev
+              libtool
+              libudev-dev
+              libudev-dev
+              libusb-1.0-0-dev
+              libva-dev
+              libwayland-dev
+              libwebp-dev
+              libx11-dev
+              libx11-xcb-dev
+              libxcb-composite0-dev
+              libxcb-xkb-dev
+              libxcursor-dev
+              libxdamage-dev
+              libxext-dev
+              libxfixes-dev
+              libxi-dev
+              libxinerama-dev
+              libxkbcommon-dev
+              libxkbfile-dev
+              libxml2-dev
+              libxrandr-dev
+              libxrender-dev
+              libxtst-dev
+              libxv-dev
+              lsb-release
+              meson
+              ninja-build
+              pkg-config
+              software-properties-common
+              squashfs-tools
+              uuid-dev
+              wayland-protocols
+              wget 
+      displayName: 'Install Dependencies'
+    
+    - script: cmake -G Ninja
+            -B build
+            -DCMAKE_INSTALL_PREFIX=/usr/local 
+            -DCMAKE_INSTALL_LIBDIR=/usr/local/lib 
+            -DCMAKE_BUILD_TYPE=RelWithDebInfo 
+            -DWITH_SERVER=ON 
+            -DWITH_CHANNEL_GFXREDIR=ON 
+            -DWITH_CHANNEL_RDPAPPLIST=ON 
+            -DWITH_CLIENT=OFF 
+            -DWITH_CLIENT_COMMON=OFF 
+            -DWITH_CLIENT_CHANNELS=OFF 
+            -DWITH_CLIENT_INTERFACE=OFF 
+            -DWITH_PROXY=OFF 
+            -DWITH_SHADOW=OFF 
+            -DWITH_SAMPLE=OFF 
+      displayName: 'CMake (Ninja)'
+    
+    - script: ninja -C build -j8
+      displayName: 'Ninja build'
+