Merge pull request #15 from rexlabsio/feat/php-8

feat: PHP 7-8.2 support + pipeline migrations

Allow php 8

update changelog

Merge pull request #11 from rexlabsio/feature/get-instances

New feature: get instances

Merge branch 'master' into develop

Merge pull request #4 from rexlabsio/feature/refactor-api

Overhaul API

add init from key, add changelog

Merge pull request #1 from rexlabsio/ds/flip

Add a way to get constant via a value

Fix package identifier