package: migrate to ES modules

src/spec/index.ts

@@ -4,10 +4,9 @@ import { promisify } from "util";
 import { ChildProcessByStdio } from 'child_process';
 import { Readable, Writable } from 'stream';
 import { createInterface } from 'readline';
-import { projectRoot } from 'lyc/environment';
-import { SPECBenchData, benchpath, buildpath, exepath } from './benchData';
+import { projectRoot } from '../environment/index.js';
+import { SPECBenchData, benchpath, exepath, buildpath } from './benchData.js';
 
-export{ pop2 } from './pop2';
 
 
 export function getEnvironment(specdir: string): NodeJS.ProcessEnv {

src/spec/pop2.ts

@@ -1,4 +1,4 @@
-import { HaveSPECObjects, SPECBenchData } from "./benchData";
+import { HaveSPECObjects, SPECBenchData } from "./benchData.js";
 
 export const pop2: SPECBenchData & HaveSPECObjects = {
     objectNames: [