Add support for typed arrays

[PrestonKnopp]

class IClass:
    class IIClass:
        var prop
    var prop

const iclass = IClass

var a1: Array[IClass.IIClass]
var a2: Array[iclass.IIClass]
var a3: Array[int]

Support can be added by rewriting the type node to be a non-terminal composed of (identifier)s, (subscript)s, and (attribute)s. This new type node will replace (dotted_type).

Array[IClass.IIClass] could be represented like

(type
  (subscript
    (identifier)
    (attribute
      (identifier)
      (identifier))))

Where

• (subscript) encapsulates generic specifier.
• (attribute)s of (identifier)s represent dotted types.

Additionally, highlight queries can use convention to differentiate between members and types.