Provide a 'strict_usage' mode that fails the build if deprecated features or anti-patterns are used

[plaird]

As we collect deprecated attributes, it would be good to allow build teams to eliminate usages of them and prevent new usages. This should be coupled with #78 to configure this mode at the workspace level. It must be False by default to not break back compat.

springboot(
    ...
    strict_usage = True,
)

I can't think of anti-patterns off-hand, but we should leave options open for what could fail the build. We should be clear that there are checks (dupeclass, max dep count, etc) which are not controlled by strict_usage.