graphqld requires specific config

graphqld integration requires configuration --config=graphqld

This allows to reduce the dependencies massively

Dependency update

v2.4.0

wrong dependency

const

v2.3.0

const

arrays

v2.2.0

arrays

std.datetime handled

v2.1.0

std.datetime worked in

Better nesting

v2.0.0

better handling of nesting

init release

v1.0.0

classes also work