mu search delta script (#229)

scripts/project/mu-search-delta/README.md

@@ -0,0 +1,43 @@
+#### Scripts mu-search-delta
+* make the script executable: `chmod a+x scripts/project/mu-search-delta/build.sh`
+* add your delta messages in json format in `config/search-migrations`, e.g:
+  ```js
+    // config/search-migrations/2023/001-delete-bedinaeren.json
+    [
+      {
+        "deletes": [
+          {
+            "subject": {
+              "type": "uri",
+              "value": "http://data.lblod.info/id/mandatarissen/807a3e07c95fe40962d64695069af946"
+            },
+            "predicate": {
+              "type": "uri",
+              "value": "http://data.vlaanderen.be/ns/mandaat#isBestuurlijkeAliasVan"
+            },
+            "object": {
+              "type": "uri",
+              "value": "http://data.lblod.info/id/personen/620523C451BFC225E4ECFA97"
+            }
+          },
+          {
+            "subject": {
+              "type": "uri",
+              "value": "http://data.lblod.info/id/mandatarissen/40ed3cb19f9fa33e47b39016780dce1d"
+            },
+            "predicate": {
+              "type": "uri",
+              "value": "http://data.vlaanderen.be/ns/mandaat#isBestuurlijkeAliasVan"
+            },
+            "object": {
+              "type": "uri",
+              "value": "http://data.lblod.info/id/personen/620523C451BFC225E4ECFA97"
+            }
+          }
+        ],
+        "inserts": []
+      }
+    ]
+  ```
+* make sure virtuoso, mu-auth, elasticsearch & mu search are running
+* run `mu script project-scripts mu-search-delta`