Add build.FullCLR.ps1 script

This script builds PowerShell targeting FullCLR, using the same projects
as Core PowerShell, and PowerShell on Linux.

build.FullCLR.ps1

@@ -0,0 +1,34 @@
+$origPWD = $pwd
+try
+{
+    $BINFULL = "$pwd/binFull"
+    $BUILD = "$pwd/build"
+
+    mkdir $BINFULL -ErrorAction SilentlyContinue
+
+    # Publish PowerShell
+    cd src\Microsoft.PowerShell.ConsoleHost
+    dotnet publish --framework dnx451 --output $BINFULL
+
+    cd ..\..\src\Microsoft.PowerShell.Commands.Utility
+    dotnet publish --framework dnx451 --output $BINFULL
+
+    cd ..\..\src\Microsoft.PowerShell.Commands.Management
+    dotnet publish --framework dnx451 --output $BINFULL
+
+    # Temporary fix for dotnet publish
+    if (Test-Path $BINFULL/Debug/dnx451) { cp $BINFULL/Debug/dnx451/* $BINFULL }
+
+    # build native host
+    mkdir $build -ErrorAction SilentlyContinue
+    cd $build
+
+    cmake ..\src\powershell-native
+    msbuild powershell.sln
+
+    cp -rec Debug\* $BINFULL
+}
+finally
+{
+    cd $origPWD
+}