Add method in watchers to cache contract and fixes for running tests

packages/eden-watcher/README.md

@@ -75,7 +75,7 @@
   yarn server
   ```
 
-GQL console: http://localhost:3008/graphql
+GQL console: http://localhost:3012/graphql
 
 * If the watcher is an `active` watcher:
 

packages/eden-watcher/src/indexer.ts

@@ -824,6 +824,10 @@ export class Indexer implements IndexerInterface {
     return this._baseIndexer.watchContract(address, kind, checkpoint, startingBlock);
   }
 
+  cacheContract (contract: Contract): void {
+    return this._baseIndexer.cacheContract(contract);
+  }
+
   async saveEventEntity (dbEvent: Event): Promise<Event> {
     return this._baseIndexer.saveEventEntity(dbEvent);
   }