Handle "generate"

[jonathanGB]

• Only enable when there is >= 2 robots
• On click, disable event listeners on "setup" robots
  • keep listeners on double click
  • make top inputs & textarea disabled (change css cursor on disabled too?)
• display generation "001"
  • pre-generate 10 generations in advance using the webworker?
  • show icon on the side to generate next "wave"?

[jonathanGB]

Now computes differents generations (by default 10), next things is to display the results and handle the concurrency (we may request a generation that is not available and done in another thread)

[jonathanGB]

Last commit implements an async "fetch" method to get the next generation state; based on this, we can eventually update the UI every generation with a single call to get the data and change our state.

[jonathanGB]

done