CSCli.exe exits unsuccessfully because blocked CSCore.dll

[Erhie]

With Windows 10 and Mono.Cecil v0.9.6.4 there are problems to build CSCore, because the
Post-build event commands execute CSCli exe with failure, because the file CSCore.dll is blocked.
My patch of this section of Tools\CSCli\Program.cs :

            /*
             * Load and process assembly
             */
            if (!File.Exists(filename))
            {
                MessageIntegration.WriteError(String.Format("Could not find file \"{0}\".", filename));
                Environment.Exit(-4);
            }
            string origfilename = filename + "_orig"; //use this filename for reader of Mono.Cecil
            File.Delete(origfilename); //delete previous version, if existing 
            try
            {
                File.Move(filename, origfilename); //file for reader
            }
            catch (Exception ex)
            {
                MessageIntegration.WriteError("Rename file to _orig failed: " + ex.ToString());
                Environment.Exit(-3);
            }
            
            WriterParameters wp = new WriterParameters();
            ReaderParameters rp = new ReaderParameters();

            var strongNameKey = Path.ChangeExtension(filename, "snk");
            if (File.Exists(strongNameKey))
            {
                MessageIntegration.Info("Signing with Key : " + strongNameKey);
                wp.StrongNameKeyPair = new StrongNameKeyPair(File.OpenRead(strongNameKey));
            }

            //check whether the pdbfile has been passed through application parameters
            if (pdbfile == null)
            {
                //if not use the default pdbfilepath by changing the extension of the assembly to .pdb
                pdbfile = Path.ChangeExtension(filename, "pdb");
            }

            //check whether the original pdb-file exists
            bool generatePdb = File.Exists(pdbfile);

            //if the original pdb-file exists -> prepare for rewriting the symbols file
            wp.WriteSymbols = generatePdb;
            rp.ReadSymbols = generatePdb;

            if (rp.ReadSymbols)
            {
                rp.SymbolReaderProvider = new PdbReaderProvider();
            }

            MessageIntegration.Info("Generating pdb: " + generatePdb.ToString());

            //open assembly
            var assembly = AssemblyDefinition.ReadAssembly(origfilename, rp); //read
            //add the directory assembly directory as search directory to resolve referenced assemblies
            ((BaseAssemblyResolver)assembly.MainModule.AssemblyResolver).AddSearchDirectory(Path.GetDirectoryName(origfilename));

            //path the assembly
            AssemblyPatcher patcher = new AssemblyPatcher(assembly, calliAttributeName, removeTypeAttributeName);
            if (patcher.PatchAssembly())
            {
                try
                {
                    assembly.Write(filename, wp);
                }
                catch (Exception ex)
                {
                    MessageIntegration.WriteError("Creating patched assembly failed: " + ex.ToString());
                    Environment.Exit(-2);
                }

                MessageIntegration.Info(String.Format("CSCli patched assembly \"{0}\" successfully.", Path.GetFileName(filename)));
                Environment.Exit(0);
            }
            else
            {
                MessageIntegration.WriteError(String.Format("\"{0}\" could not be patched.", filename));
                Environment.Exit(-1);
            }