Add stub config exports.

modules/lms_xapi_activity/config/activity_answer/xapi/core.entity_form_display.lms_activity._bundle_placeholder_.default.yml

+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.lms_activity._bundle_placeholder_.field_xapi_package
+    - lms.lms_activity_type._bundle_placeholder_
+  module:
+    - lms_xapi
+id: lms_activity._bundle_placeholder_.default
+targetEntityType: lms_activity
+bundle: _bundle_placeholder_
+mode: default
+content:
+  created:
+    type: datetime_timestamp
+    weight: 10
+    region: content
+    settings: {  }
+    third_party_settings: {  }
+  field_xapi_package:
+    type: lms_xapi
+    weight: 26
+    region: content
+    settings:
+      progress_indicator: throbber
+    third_party_settings: {  }
+  name:
+    type: string_textfield
+    weight: -4
+    region: content
+    settings:
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+  uid:
+    type: entity_reference_autocomplete
+    weight: 5
+    region: content
+    settings:
+      match_operator: CONTAINS
+      match_limit: 10
+      size: 60
+      placeholder: ''
+    third_party_settings: {  }
+hidden: {  }

modules/lms_xapi_activity/config/activity_answer/xapi/core.entity_view_display.lms_activity._bundle_placeholder_.default.yml

+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.lms_activity._bundle_placeholder_.field_xapi_package
+    - lms.lms_activity_type._bundle_placeholder_
+  module:
+    - lms_xapi
+    - user
+id: lms_activity._bundle_placeholder_.default
+targetEntityType: lms_activity
+bundle: _bundle_placeholder_
+mode: default
+content:
+  field_xapi_package:
+    type: lms_xapi
+    label: above
+    settings: {  }
+    third_party_settings: {  }
+    weight: 1
+    region: content
+  name:
+    type: string
+    label: above
+    settings:
+      link_to_entity: false
+    third_party_settings: {  }
+    weight: -4
+    region: content
+  uid:
+    type: author
+    label: hidden
+    settings: {  }
+    third_party_settings: {  }
+    weight: 0
+    region: content
+hidden: {  }

modules/lms_xapi_activity/config/activity_answer/xapi/field.field.lms_activity._bundle_placeholder_.field_xapi_package.yml

+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.lms_activity.field_xapi_package
+    - lms.lms_activity_type._bundle_placeholder_
+  module:
+    - lms_xapi
+id: lms_activity._bundle_placeholder_.field_xapi_package
+field_name: field_xapi_package
+entity_type: lms_activity
+bundle: _bundle_placeholder_
+label: 'XAPI package'
+description: ''
+required: true
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  file_directory: lms_xapi_packages
+  file_extensions: zip
+  max_filesize: ''
+  description_field: 0
+  handler: 'default:file'
+  handler_settings: {  }
+field_type: lms_xapi

modules/lms_xapi_activity/config/activity_answer/xapi/field.storage.lms_activity.field_xapi_package.yml

+langcode: en
+status: true
+dependencies:
+  module:
+    - file
+    - lms
+    - lms_xapi
+id: lms_activity.field_xapi_package
+field_name: field_xapi_package
+entity_type: lms_activity
+type: lms_xapi
+settings:
+  display_field: 0
+  display_default: 0
+  uri_scheme: public
+  target_type: file
+module: lms_xapi
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false