Implement debugging utilities

[JoaaoVerona]

In a more general way, it is necessary to implement debugging utilities, like breakpoints, which could have conditions and/or dynamic injection of code. This will only be possible when #17 is implemented, and #1 is fixed, so that source code can be mapped to the generated compiled structures. Also, when implementing a small IDE in the future, it would be able to manage breakpoints easily.

Definition:

• In Java:

Component.insertBreakpoint(String condition, String execute)

• In a script (alternative 1):

breakpoint(string, string)

• In a script (alternative 2):

breakpoint(any (resultor), string)

• In a script (alternative 3):

breakpoint(any (resultor), ref (callback))

PS: the definition is subjected to changes.

Example usage:

using dialogs
using std

for i in (0, 255) {
  breakpoint("i == 155", "dialog(\"Hey!\", \"i reached 155.\")")
  # or:
  breakpoint(i == 155, "dialog(\"Hey!\", \"i reached 155.\")")
  # or:
  def breakpointDialog() {
    dialog("Hey!", "i reached 155.")
  }

  breakpoint(i == 155, @breakpointDialog)
}