Makefile: Fix output during parallel builds (#12991)

Replace use of separate "cmake -E cmake_progress_report" and "cmake -E
cmake_echo_color" commands to report the progress and message portions
of build output lines with --progress-* options to the latter to print
everything with a single command.  The line buffering of the stdout FILE
stream should cause the whole line to be printed with one atomic write.
This will avoid inter-mixing of line-wise messages from different
processes during a parallel build.

Source/cmMakefileTargetGenerator.h

@@ -109,7 +109,7 @@ protected:
   void GenerateExtraOutput(const char* out, const char* in,
                            bool symbolic = false);
 
-  void AppendProgress(std::vector<std::string>& commands);
+  void MakeEchoProgress(cmLocalUnixMakefileGenerator3::EchoProgress&) const;
 
   // write out the variable that lists the objects for this target
   void WriteObjectsVariable(std::string& variableName,