Differentiate parameter input based on type

[wnbaum]

The parameter input should change based on what is being inputted. For example, if we have a color input, we should show a color picker. For a Vector2 input we should have two inputs for each component ideally, though at the moment you have to input 0,0 for example.

I've implemented the color picker. We should also be able to set a default value for the parameter input. In StatementBlock where we create a parameter based on a string like {test: STRING}, we should be able to give it a default value like
{test: STRING = "Hello World!"}.

We could also have a new type called DROPDOWN that exposes text options to the user to modify the block.

https://phabricator.endlessm.com/T35505

[wnbaum]

Can now add default values to parameter inputs. Will be helpful for dropdown.

[wnbaum]

Added dropdowns, condensing some of the logic blocks for example.

[manuq]

I know this is still in draft, but IMO option is not a block type, it's something inside a block.

[wnbaum]

Sure, I was just reusing the parameter input generation we already had, because it ties into the code generation, and it basically is just a parameter input with some default text values. I suppose I can implement another component for this and add different syntax to create them in the StatementBlock formatting code if you think that's better.

[wnbaum]

I will do it a different way since you merged the new typing stuff, just rebased.

[manuq]

Added dropdowns, condensing some of the logic blocks for example.

This is looking great!

[manuq]

Looks great!

[manuq]

You can save some indentation by returning earlier:

	if not option:
		return

	_panel.visible = false
	(...)

[wnbaum]

The diff looks kind of weird, but I can't return early because if option is false I want to do the normal variant_type logic.

[manuq]

Same here about the early return for indentation.

[wnbaum]

Had to rebase again, should be good now.