Add cache interface, factory, and basic in-mem implementation

src/lifecycle/Application.ts

@@ -14,6 +14,7 @@ import {Logging} from '../service/Logging';
 import {RunLevelErrorHandler} from "./RunLevelErrorHandler";
 import {Unit, UnitStatus} from "./Unit";
 import * as dotenv from 'dotenv';
+import {CacheFactory} from "../support/cache/CacheFactory";
 
 export function env(key: string, defaultValue?: any): any {
     return Application.getApplication().env(key, defaultValue)
@@ -103,6 +104,8 @@ export class Application extends Container {
         this.bootstrapEnvironment()
         this.setupLogging()
 
+        this.registerFactory(new CacheFactory())  // FIXME move this somewhere else?
+
         this.make<Logging>(Logging).debug(`Application root: ${this.baseDir}`)
     }