Implementing thread synchronization via decorators

[Dreamlone]

Now sometimes it may be necessary to synchronize threads (for example, when there are several pipelines in one service that use the same local file). It is implemented through Event object.

But such a functionality can be implemented via decorators and become available for custom users functions such as:

@threads_synchronization
def my_custom_function(**params):
     return None

And then we can just add a decorator for threads synchronization during function executon and that's it