CPS-401 Update Open API YAML with data types and example for output (cpsData)

-added response for get data nodes based on dataspace and anchor
-modified modelmapper jn DataRestControllerSpec to be Spy not Mock
-when openapi.yaml is entered into https://editor.swagger.io/ it
displays however locally it does not, This may be due to file
segmentation but this is still unclear.
-moved files from docs/openapi to src/main/resources/static as required
for new swagger sprindoc

Issue-ID: CPS-401

Change-Id: I45286530d9a9ca85b56c0a656a44675398a003f4
Signed-off-by: JosephKeenan <joseph.keenan@est.tech>
diff --git a/cps-rest/src/main/resources/static/openapi.yml b/cps-rest/src/main/resources/static/openapi.yml
new file mode 100644
index 0000000..8fa640c
--- /dev/null
+++ b/cps-rest/src/main/resources/static/openapi.yml
@@ -0,0 +1,77 @@
+#  ============LICENSE_START=======================================================
+#  Copyright (C) 2021 Nordix Foundation
+#  Modifications Copyright (C) 2021 Pantheon.tech
+#  ================================================================================
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#        http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#
+#  SPDX-License-Identifier: Apache-2.0
+#  ============LICENSE_END=========================================================
+
+openapi: 3.0.1
+info:
+  title: ONAP Open API v3 Configuration Persistence Service
+  description: Configuration Persistence Service is a Model Driven Generic Database
+  version: "1.0.0"
+  contact:
+     name: ONAP
+     url: "https://onap.readthedocs.io"
+     email: "onap-discuss@lists.onap.org"
+  license:
+      name: "Apache 2.0"
+      url: "http://www.apache.org/licenses/LICENSE-2.0"
+  x-planned-retirement-date: "202212"
+  x-component: "Modeling"
+  x-logo:
+      url: "cps_logo.png"
+
+servers:
+  - url: /cps/api
+tags:
+  - name: cps-admin
+    description: cps Admin
+  - name: cps-data
+    description: cps Data 
+paths:
+
+  /v1/dataspaces:
+    $ref: 'cpsAdmin.yml#/dataspaces'
+
+  /v1/dataspaces/{dataspace-name}:
+    $ref: 'cpsAdmin.yml#/dataspaceByDataspaceName'
+
+  /v1/dataspaces/{dataspace-name}/anchors:
+    $ref: 'cpsAdmin.yml#/anchorsByDataspace'
+
+  /v1/dataspaces/{dataspace-name}/anchors/{anchor-name}:
+    $ref: 'cpsAdmin.yml#/anchorByDataspaceAndAnchorName'
+
+  /v1/dataspaces/{dataspace-name}/schema-sets:
+    $ref: 'cpsAdmin.yml#/schemaSet'
+
+  /v1/dataspaces/{dataspace-name}/schema-sets/{schema-set-name}:
+    $ref: 'cpsAdmin.yml#/schemaSetBySchemaSetName'
+
+  /v1/dataspaces/{dataspace-name}/anchors/{anchor-name}/node:
+    $ref: 'cpsData.yml#/nodeByDataspaceAndAnchor'
+
+  /v1/dataspaces/{dataspace-name}/anchors/{anchor-name}/nodes:
+    $ref: 'cpsData.yml#/nodesByDataspaceAndAnchor'
+
+  /v1/dataspaces/{dataspace-name}/anchors/{anchor-name}/list-node:
+    $ref: 'cpsData.yml#/listNodeByDataspaceAndAnchor'
+
+  /v1/dataspaces/{dataspace-name}/nodes:
+    $ref: 'cpsData.yml#/nodesByDataspace'
+
+  /v1/dataspaces/{dataspace-name}/anchors/{anchor-name}/nodes/query:
+    $ref: 'cpsQuery.yml#/nodesByDataspaceAndAnchorAndCpsPath'