Support text() condition

- Added Antlr parsing of text() condition (as an optional additional to any query)
- Implemented text-condition combined with descendants
- Refactor descendants queries into using one more flexible Custom (native) Query builder
- Refactor ALL cpsPath queries to now use FragmentRepositoryCpsPathQuery (custom query builder)
- Refactor Antrl code to simply parsing of cpsPath and allow all combinations (no more query types, addresses CPS-436)
- Minor clean up of some minor convention issues in CpsAdminServiceImplSpec.groovy (found during groovy demo)
- Update .rst documentation of xPaths
- Fixed incorrect matching of additional list indexes using more precise SIMILAR-TO regex in postgreSQL
- Documented special chararter limitation (CPS-500)
- Checked for consistent use of term 'CPS path' in documentation and error message
- Included (updated) copyright in all .SQL test files

Issue-ID: CPS-452
Issue-ID: CPS-436
Issue-ID: CPS-500

Signed-off-by: ToineSiebelink <toine.siebelink@est.tech>
Change-Id: If422d25cafd2850d25c9a28dea16ba7a5f93dddb
diff --git a/cps-ri/src/test/resources/data/schemaset.sql b/cps-ri/src/test/resources/data/schemaset.sql
index e6306d0..adfcfa1 100644
--- a/cps-ri/src/test/resources/data/schemaset.sql
+++ b/cps-ri/src/test/resources/data/schemaset.sql
@@ -1,3 +1,25 @@
+/*
+   ============LICENSE_START=======================================================
+    Copyright (C) 2020-2021 Pantheon.tech
+    Modifications Copyright (C) 2020 Nordix Foundation.
+    Modifications Copyright (C) 2020-2021 Bell Canada.
+   ================================================================================
+   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=========================================================
+*/
+
 INSERT INTO DATASPACE (ID, NAME) VALUES
     (1001, 'DATASPACE-001'), (1002, 'DATASPACE-002');