Feature/fixed board shay

[shayc]

This is a PR to your feature/fixed-board branch:

It contains an updated FixedGrid component with drag and drop support, instead of relying on react-obf, which I'm not sure I'll maintain. the code will be in Cboard, this way if there's a bug, a maintainer wouldn't need to clone another repository and walk through the process of publishing a new version on npm.

Changes in this pr:

• Add TypeScript support - it doesn't mean we need to write in TypeScript, just that if someone wants to they can.
• Use CSS Modules
• Removed react-obf npm package
• Add FixedGrid component (backward compatible with react-obf API)
• Add react-dnd npm package (for drag and drop)

Todo:

• Fix: Drag and drop uses HTML5Backend, unfortunately it doesn't support touch, need to use TouchBackend instead - https://react-dnd.github.io/react-dnd/docs/backends/touch
• Fix: newOrder initially doesn't contain all tile ids. I guess there's a bug/not implemented when creating initial order?
  
• Fix: After dropping a Tile, the board is saved with updateBoard and saveApiBoardOperation but new grid state isn't reflected in the UI
• Tests?