Identify content vs. configuration

there has been some back and forth in #2200379: Upgrade UI → , about using a manifest or adding 'type' to the destination. i made a pass at putting type destination configuration, but this will probably change.

i believe this is the inclusive list:

configuration:

1. d6_action_settings
2. d6_aggregator_settings
3. d6_book_settings
4. d6_contact_category
5. d6_contact_settings
6. d6_date_formats
7. d6_dblog_settings
8. d6_node_type
9. d6_field
10. d6_field_instance
11. d6_field_instance_widget_settings
12. d6_field_settings
13. d6_node_type_entity_display
14. d6_node_type_entity_display_teaser
15. d6_node_type_entity_form_display
16. d6_file_settings
17. d6_filter_format
18. d6_format_settings
19. d6_locale_settings
20. d6_menu
21. d6_menu_settings
22. d6_node_body_instance
23. d6_node_settings
24. d6_search_page
25. d6_search_settings
26. d6_simpletest_settings
27. d6_statistics_settings
28. d6_syslog_settings
29. d6_system_cron
30. d6_system_file
31. d6_system_filter
32. d6_system_image
33. d6_system_image_gd
34. d6_system_maintenance
35. d6_system_performance
36. d6_system_rss
37. d6_system_site
38. d6_taxonomy_settings
39. d6_taxonomy_vocabulary
40. d6_text_settings
41. d6_update_settings
42. d6_upload_field
43. d6_upload_field_instance
44. d6_upload_entity_display
45. d6_upload_entity_form_display
46. d6_user_mail
47. d6_user_picture_field
48. d6_user_picture_field_instance
49. d6_user_picture_entity_display
50. d6_user_picture_entity_form_display
51. d6_user_profile_entity_display
52. d6_user_profile_entity_form_display
53. d6_user_profile_field
54. d6_user_profile_field_instance
55. d6_user_role
56. d6_view_modes
57. d6_field_formatter_settings
58. d6_vocabulary_field
59. d6_vocabulary_field_instance
60. d6_vocabulary_entity_display
61. d6_vocabulary_entity_form_display
62. d6_comment_entity_display
63. d6_comment_entity_form_display
64. d6_comment_field
65. d6_comment_field_instance

content:

1. d6_aggregator_feed
2. d6_aggregator_item
3. d6_block
4. d6_custom_block
5. d6_file
6. d6_profile_values
7. d6_taxonomy_term
8. d6_url_alias
9. d6_user_picture_file
10. d6_user
11. d6_node
12. d6_node_revision
13. d6_term_node
14. d6_term_node_revision
15. d6_comment
16. d6_upload