Schematics: Generating a store for a library includes environments

[brandonroberts]

Minimal reproduction of the bug/regression with instructions:

Modified instructions from #1197

1. ng new my-demo
2. cd my-demo
3. yarn add @ngrx/{store,effects,entity,store-devtools,router-store,schematics}
4. ng config cli.defaultCollection @ngrx/schematics
5. ng g library demo-products
6. ng generate store State --project demo-products

Expected behavior:

Don't include the environments when generating schematics for a library

Versions of NgRx, Angular, Node, affected browser(s) and operating system(s):

Other information:

I would be willing to submit a PR to fix this issue

[ ] Yes (Assistance is provided if you need help submitting a pull request)
[ ] No