Upgrade deps (major)

Upgrades to match modelarium 0.4, lighthouse 5 and graphql-php v14.

Modelarium 0.3

Changes to be compatible with modelarium v0.3.

More permissive composer

v0.4.1

more permissive composer

New interfaces and methods

Updated to modelarium 0.2.0.
Added new methods.
Fixed bugs.

Fixes directive class name

Fixes lighthouse class name

Minor issues

Fixes minor issues on 0.3.0

Split conversions

Conversions is now an array of type, allowing multiple conversions

First stable release

Things work. Amazing.

Initial version

First initial version, split from modelarium code