As part of MDL-81918 (Break apart core monolith *lib.php files). 

File "lib/badgeslib.php" contains 28 constants and 37 functions:

• Constants
  For instance: BADGE_PERPAGE, BADGE_CRITERIA_AGGREGATION_ALL, BADGE_STATUS_INACTIVE, BADGE_TYPE_SITE, BADGE_MESSAGE_NEVER, BADGRIO_BACKPACKAPIURL…
• Functions:
  • badges_notify_badge_award
  • badges_calculate_message_schedule
  • badge_message_from_template
  • badges_get_badges
  • badges_get_user_badges
  • badges_get_badge_by_hash
  • badges_prepare_badge_for_external
  • badges_prepare_badgeclass_for_external
  • badges_add_course_navigation
  • badges_award_handle_manual_criteria_review
  • badges_process_badge_image
  • print_badge_image
  • badges_bake
  • get_backpack_settings
  • badges_download
  • badges_user_has_backpack
  • badges_handle_course_deletion
  • badges_create_site_backpack
  • badges_update_site_backpack
  • badges_delete_site_backpack
  • badges_save_external_backpack
  • badges_save_backpack_credentials
  • badges_open_badges_backpack_api
  • badges_get_site_backpack
  • badges_get_user_backpack
  • badges_get_site_primary_backpack
  • badges_get_site_backpacks
  • badges_change_sortorder_backpacks
  • badges_get_badge_api_versions
  • badges_get_default_issuer
  • badges_disconnect_user_backpack
  • badges_external_get_mapping
  • badges_external_create_mapping
  • badges_external_delete_mappings
  • badges_external_delete_mapping
  • badges_send_verification_email
  • badges_list_criteria
  • badge_award_criteria_competency_has_records_for_competencies
  • badge_assemble_notification
  • badges_verify_site_backpack. Can it be deprecated?
  • badges_verify_backpack
  • badges_generate_badgr_open_url