Added stuff in config directory

config/field.field.oc_case.project.field_contract_signed_date.yml

@@ -0,0 +1,21 @@
+uuid: f2ca295b-126e-4902-aaca-77298af449d9
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.oc_case.field_contract_signed_date
+    - opencase_cases.oc_case_type.project
+  module:
+    - datetime
+id: oc_case.project.field_contract_signed_date
+field_name: field_contract_signed_date
+entity_type: oc_case
+bundle: project
+label: 'Contract signed date'
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings: {  }
+field_type: datetime