Complete redo of content indexing and querying (#517)

Complete redo of data store
Introduces live queries and live templates

plugos/system.ts

@@ -86,8 +86,7 @@ export class System<HookT> extends EventEmitter<SystemEvents<HookT>> {
     args: any[],
   ): Promise<any> {
     return this.syscallWithContext(
-      // Mock the plug
-      { plug: { name: contextPlugName } as any },
+      { plug: this.plugs.get(contextPlugName)! },
       syscallName,
       args,
     );