template-tag-codemod polish issues

[ef4]

• when a default setting will not work due to your dependency versions, etc, stop and error explaining your choices (flip the flag or upgrade the dep). In the case of nativeRouteTemplates it depends on both ember-source version and presence of ember-route-template.
• detect old versions of render from @ember/test-helpers that won't accept a component
• deal with HTML element name collisions
• offer customizable invokable naming (port forward Alex's work from stable codemod)