Aioworkers

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* Improved Subprocess
* Access member of entity over context
* Proxy queue for readline from stdin
* Command line param --config-stdin

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* Fix FileSystemStorage.get_free_space
* Improve import_name

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* Fix access to nested element
* Improve import_name

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* Fix config loader ini

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* Application is a regular entity not required in context
* Fix load config from http resource
* Search config in plugin by mask plugin.*
* Extends info about fail import in import_name

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* Added AsyncPath based on PurePath
* FileSystemStorage.raw_key -> AsyncPath (backward incompatible)
* FileSystemStorage support nested interface
* Fix Worker.init with uninitialized queue
* Humanize func parse_size & parse_duration
* Prevent branching when accessing private attributes for nested obj
* Move AbstractReader & AbstractWriter to core
* Fix GroupResolver to resolve exclude many groups