create folder using async call

[amerharb]

in file: webapp/src/RepoGit.ts a folder is created using fs.existsSync which is not recommended

1. use different method that is async
2. rename import fsp from ... back into import fs from ...

[a-jaxell]

Is this implemented?
I checked and the only mkdir is using fsp and is within this function inside of RepoGit.ts

private static async clone(spConfig: ServerProjectConfig): Promise<void> {
    debug(`create directory: ${spConfig.repoPath} ...`);
    await fsp.mkdir(spConfig.repoPath, { recursive: true });
    const git = new SimpleGitWrapper(spConfig.repoPath);
    debug(`Cloning repo: ${spConfig.repoPath} ...`);
    await git.clone(spConfig.cloneUrl, spConfig.repoPath);
    debug(`Cloned repo: ${spConfig.repoPath}`);
    debug(`Checkout base branch: ${spConfig.baseBranch} ...`);
    await git.checkout(spConfig.baseBranch);
    debug(`Checked out base branch: ${spConfig.baseBranch}`);
  }

[WULCAN]

Our use of existsSync is still there on

lyra/webapp/src/RepoGit.ts

Line 47 in e9eff18

if (!fs.existsSync(spConfig.repoPath)) {

It is not exactly used to create a folder, but to avoid creating a new folder with clone, it a folder already exists.