logic: Fixed bugs in TaskParse scheduling

* Added TaskParse as base for TaskParseCxx and TaskParseJava
* Fixed increment and decrement of indexer_count on blackboard not atomic
* Fixed TaskInjectStorage finished before TaskParse started
* Fixed project not cleared when refreshing on now empty project
* Fixed TaskInjectStorage overheating when nothing to do

src/lib/data/TaskInjectStorage.h

@@ -25,6 +25,8 @@ private:
 
 	std::shared_ptr<StorageProvider> m_storageProvider;
 	std::shared_ptr<Storage> m_target;
+
+	bool m_hasInjected;
 };
 
 #endif // TASK_INJECT_STORAGE_H