chore(plugin): Move plugins logic into an OO service
chore(config): Remove use of global config functions from all classes
Merge pull request #7465 from ewinslow/oo-plugins-storage

chore(plugin): Move plugins logic into an OO service
chore(session): Remove use of global session functions from all classes
Merge pull request #7466 from ewinslow/oo-services-session

chore(session): Remove use of global session functions from all classes
chore(db): Remove use of global db functions from all classes
Merge pull request #7468 from ewinslow/oo-services-config

chore(config): Remove use of global config functions from all classes
Merge pull request #7467 from ewinslow/oo-services-db

chore(db): Remove use of global db functions from all classes