Enable tiered compilation for the worker to help the code start (#167)

Author: daxian-dbw

src/Microsoft.Azure.Functions.PowerShellWorker.csproj

@@ -7,6 +7,7 @@ Licensed under the MIT license. See LICENSE file in the project root for full li
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TieredCompilation>true</TieredCompilation>
     <Product>Azure Function PowerShell Language Worker</Product>
     <AssemblyName>Microsoft.Azure.Functions.PowerShellWorker</AssemblyName>