Add public functions for ease of use

[theenoahmason]

• Add a method to be able to get a parsed field value, by wrapping get_{component}_meta().
• Add a method to be able to get a field's configuration from outside of the class.
• This will require either setting the component instances as global, OR setting just the component instance fields as global when they are initialized.

Explorations:

get_field( $component_type, $component_slug, $field_name );

get_field_value( $component_type, $component_slug, $field_name, $object_id );

get_fields( $component_type, $component_slug );