Assign registering post types and taxonomies to the 'init' hook

[gicolek]

https://github.com/xfiveco/generator-chisel/blob/master/generators/wp/templates/chisel-starter-theme/Chisel/Extensions/DataType.php

For instance: https://gist.github.com/gicolek/f476419226944b19c43da029c07c7c32

This doesn't mean it won't work, but WordPress documentation is pretty strict here: (for instance this gives one an ability to unhook such an action).

https://codex.wordpress.org/Function_Reference/register_post_type#Example