Add access logs and command line tool

# summary

### 1

Added optional access logs using https://github.com/bahamas10/node-access-log by setting `options.accessLog`

### 2

Correct typo (`sslHost` => `sslPort`) in the readme, as well as added missing option `serverName`

### 3

Added command line tool for `ensure-https`.  It allows creating a server for this specific purpose with one command, and is fully customizable with environmental variables