Added stuff in config directory

config/field.storage.oc_activity.field_age.yml

@@ -0,0 +1,41 @@
+uuid: 29b0971b-1129-44f9-920a-5f6407543226
+langcode: en
+status: true
+dependencies:
+  module:
+    - opencase_entities
+    - options
+_core:
+  default_config_hash: tBshsk7K-HRh0L8ZgG-WSRRNNJ26PzLfow2SzhT9nTI
+id: oc_activity.field_age
+field_name: field_age
+entity_type: oc_activity
+type: list_string
+settings:
+  allowed_values:
+    -
+      value: under_18
+      label: 'Under 18'
+    -
+      value: 18-24
+      label: 18-24
+    -
+      value: 25-34
+      label: 25-34
+    -
+      value: 35-44
+      label: 35-44
+    -
+      value: 45-54
+      label: 45-54
+    -
+      value: 55+
+      label: 55+
+  allowed_values_function: ''
+module: options
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false