Merge pull request #12 from fond-of-vertigo/feat/logger_rework

Feat: Replaced loggerFunc with slog

Feat: Added Config and MustConnect function

* Config for NATS Connection
* MustConnect function uses Config to connect to remote servers
* internal helper functions

Feat: Added Config and MustConnect function

* Config for NATS Connection
* MustConnect function uses Config to connect to remote servers
* internal helper functions

Merge pull request #10 from fond-of-vertigo/fix/subscriber-consumer-name

fix: let pull-subscriber create consumer

Merge pull request #8 from fond-of-vertigo/refactor/interfaces-linter

Add golangci-lint

enhanced example