ClangTools: Add tool that runs clang-tidy and clazy

... over the whole project.
Generate and read serialized files to get diagnostics.

Change-Id: Iafc25fc70443107a040a995efc038aed35102bbf
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@qt.io>

src/plugins/clangtools/clangtoolslogfilereader.h

@@ -30,6 +30,8 @@
 #include <QList>
 #include <QCoreApplication>
 
+namespace Utils { class FileName; }
+
 namespace ClangTools {
 namespace Internal {
 
@@ -38,6 +40,9 @@ class LogFileReader
     Q_DECLARE_TR_FUNCTIONS(ClangTools::Internal::LogFileReader)
 public:
     static QList<Diagnostic> readPlist(const QString &filePath, QString *errorMessage);
+    static QList<Diagnostic> readSerialized(const QString &filePath,
+                                            const QString &logFilePath,
+                                            QString *errorMessage);
 };
 
 } // namespace Internal