CMake: Add information about all sourceFiles to the CMakeBuildTarget

Change-Id: I13b978b2cd344c499c405ce11213261bf224296a
Reviewed-by: hjk <hjk@qt.io>
Reviewed-by: Cristian Adam <cristian.adam@qt.io>

src/plugins/cmakeprojectmanager/cmakebuildtarget.h

@@ -37,6 +37,7 @@ public:
     Utils::FilePath sourceDirectory;
     Utils::FilePath makeCommand;
     Utils::FilePaths libraryDirectories;
+    Utils::FilePaths sourceFiles;
 
     Backtrace backtrace;