Erratic behavior of fc.move

[jeff-zucker]

The move function creates extraneous .acl,.meta, and .meta.acl files.

This simple, test illustrates the problem :

onst $rdf = global.$rdf = require('rdflib');
const {SolidFileClient} = require('../');
const {SolidNodeClient} = require('solid-node-client');
const {cwd} = require('process');
const fs = require('fs');

const fc = new SolidFileClient( new SolidNodeClient({parser:$rdf}) );

let base = 'file://' + cwd();
let fbase = cwd();
let res;

async function test(){

  await cleanTestFolders();

  fs.readdir(fbase+"/test/", async (err, files) => {
    console.log("test/ contains ",files||[]);
    res = await fc.createFile(base+"/test/foo.txt","bar","text/plain");
    console.log(res.status,"createFile");
    res = await fc.move(base+"/test/foo.txt",base+"/test/bar.txt");
    console.log(res.status,"move");
    fs.readdir(fbase+"/test/", (err, files) => {
      console.log("test/ contains ",files);
    });
  });

}
test();

async function cleanTestFolders(){
  await fc.delete(base+"/test/foo.txt");
  await fc.delete(base+"/test/bar.txt");
  await fc.delete(base+"/test/");
}
```

These are the results I get.
```
test/ contains  []
201 createFile
201 move
test/ contains  [ 'bar.txt', 'bar.txt.acl', 'bar.txt.meta', 'bar.txt.meta.acl' ]
```