Synchronized startup and shutdown

[localghost]

Add components that would allow to control the order of the application startup and shutdown.

Currently there are many static variables which make use of each other and if they are initialized or de-initialized in wrong order (which is hard to track since they are scattered throughout the whole application) a crash may happen.

The components should allow managing initialization/de-initialization of such variables or other components in general.

Such variables are basically singletons but sometimes singleton is just the only option.