Allow custom view component directory

[calebuharrison]

The custom field generator generates several view components that are used to render the field. It would be nice if the generator could make use of a configuration option that allows the directory of these generated components to change. Currently, it places the components in app/components, but in my apps, I put components in different directories, such as app/view_components or app/frontend/components.

[adrianthedev]

I see what you mean. Yeah, that could be a nice addition.

[adrianthedev]

I'll add it as an issue so someone picks it up.

[adrianthedev]

#423