[TASK] Reformat
- Add Intellij to ignore
[TASK] Refactor
- Remove useless client.js, put code into whmcs.js instead
- Move whmcs.js to root, change to be dynamic
- Reformat code a bit
- Rename some modules to what they should be (plural)
- Move getTickets to support
- Create new way to pass options to methods
- Refactor utils to be cleaner
- Bump major version due to breaking changes for the API

More to come..