Making ProjectDependenciesCommandResolver handle msbuild projects as well by using the ProjectFactory and IProject.

Moving the CommandResolution classes that depend on msbuild back into Cli.Utils.

Updating the src projects to a netstandard compatible with Cli.Utils moving to netstandard1.5

TestAssets/TestProjects/MSBuildTestAppWithToolInDependencies/Program.cs

@@ -0,0 +1,12 @@
+using System;
+
+namespace MSBuildTestApp
+{
+    public class Program
+    {
+        public static void Main(string[] args)
+        {
+            Console.WriteLine("Hello World!");
+        }
+    }
+}