first version of organisation pages

Basic organisation pages. The two pages are very similar, but I didn't want to add state for the url where the data is coming from, so I left them as separate pages. Filtering is enabled because Jennifer wanted to see it like this first, but I think we should take it out because it's easy to find what you want in the full list.

webapp/src/helpers/dataconversion.tsx

@@ -3,7 +3,7 @@ import {
     FundingSource,
     FundingSourceDataset,
     ChargingStructure,
-    ChargingStructureDataset, Budget, BasicDataset, NrenStaff, NrenStaffDataset
+    ChargingStructureDataset, Budget, BasicDataset, NrenStaff, NrenStaffDataset, Organisation
 } from "../Schema";
 
 const DEFAULT_CHARGING_STRUCTURE_DATA = [
@@ -244,6 +244,26 @@ export function createChargingStructureDataset(chargingStructureData: ChargingSt
 
 }
 
+export function createOrganisationDataLookup(organisationEntries: Organisation[]) {
+    const nrenMap = new Map<string, Map<number, Organisation[]>>();
+
+    organisationEntries.forEach(entry => {
+        let nrenEntry = nrenMap.get(entry.nren);
+        if (!nrenEntry) {
+            nrenEntry = new Map<number, Organisation[]>();
+        }
+        let suborgList = nrenEntry.get(entry.year);
+        if (!suborgList) {
+            suborgList = [];
+        }
+        suborgList.push(entry);
+        nrenEntry.set(entry.year, suborgList);
+        nrenMap.set(entry.nren, nrenEntry);
+    });
+    return nrenMap;
+}
+
+
 export const createNRENStaffDataset = (data: NrenStaff[], roles: boolean) => {
     function CreateDataLookup(data: NrenStaff[]) {
         const dataLookup = new Map<string, Map<string, number>>();