BetterForms 4.0

• Simplify the code structure
  This update is a foundation to make the project structure more straight-forward, allowing for future updates. While there is no significant change in server side, this update is required to prepare for more "insane" components in future updates.
• Remove redundant code

1. Add Multi-line support in more components
   Content in Modal Form
   Button in Simple Form
2. Make some internal changes

1. Fix an oopsie when registering components on Custom Form
2. Add String List support for content in Simple Form

1. Rework parts of the codebase for ease of maintenance
2. Add View Requirement to Form Components
   You can check the wiki here

Build against the latest version of BetterGUI