[BREAKING] Replace console.log with process.stderr (#643)

BREAKING CHANGE:
Messages will now be written to stderr instead of stdout.

JIRA: CPOUI5FOUNDATION-802
Related to: SAP/ui5-tooling#701
Sibling of: SAP/ui5-tooling#930,
SAP/ui5-cli#686

lib/sslUtil.js

@@ -70,13 +70,13 @@ async function createAndInstallCertificate(keyPath, certPath) {
  // the created certificate into the system)
  // TODO: Prompt and logging should happen in CLI module rather than server
  if (process.platform === "win32") {
- /* eslint-disable-next-line no-console */
- console.log("Please press allow in the opened dialog to confirm importing the newly created " +
+ process.stderr.write("Please press allow in the opened dialog to confirm importing the newly created " +
  "SSL certificate into the operating system and browsers.");
+ process.stderr.write("\n");
  } else {
- /* eslint-disable-next-line no-console */
- console.log("Please enter your root password to allow importing the newly created " +
+ process.stderr.write("Please enter your root password to allow importing the newly created " +
  "SSL certificate into the operating system and browsers.");
+ process.stderr.write("\n");
  }
 
  const {key, cert} = await devCert("UI5Tooling");