san collect plugin
Added extracosts
remove needless file
Fix flake8
Fix notics
Merge pull request #237 from mkurek/feature/services-model-inheritance

pricing object model inheritance
fixed san tests
Merge remote-tracking branch 'allegro_ralph_pricing/services' into feature/service-san-plugin
fixed san unit tests
Added service to requirements

Added service to requirements
Fix notics

Fix notics
Merge pull request #232 from mkurek/feature/service-san-plugin

san collect plugin
Fix syntax

Fix syntax
Merge pull request #233 from kula1922/feature/upgrade-plugins

Added extracosts
merge