Interaction Framework

[jasonlessenich]

This PR adds the Interaction Framework which was mentioned in #8

Example

new InteractionHandlerBuilder(responseBuilder)
     .addButtons(
   	  new ButtonAction("Dummy Button", ButtonStyle.PRIMARY)
   	    .handledBy(ButtonExample.class)
   	    .addParam(interaction.getUser().getId()),
   	  new ButtonAction("Dummy Button²", ButtonStyle.PRIMARY)
   	    .handledBy(ButtonExample.class)
   	    .addParam(interaction.getCommandId()))
     .addSelectionMenus(
          new SelectMenuAction()
   	    .handledBy(SelectMenuExample.class)
   	    .addOptions(
               SelectMenuOption.create("Label", "Value"),
               SelectMenuOption.create("Label²", "Value²"))
   	    .setMinValue(2)
   	    .setMaxValue(10)
   	    .setPlaceholder("Choose one!")
     ).getResponseBuilder();

[andrewlalis]

Add a check to make sure that the label does not contain the ':' character. Throw an IllegalArgumentException if so, since this will mess up handling the interaction later on.

[andrewlalis]

Same here, check that the param's string representation cannot contain the ':' symbol. Also it would probably be nicer to just require a String parameter instead of accepting any object and then converting it into a string. Also this doesn't seem to support the notion of type-checked or named parameters, which is something that would make handling the button interactions much easier, since then each developer who adds an interaction wouldn't be responsible for their own manual parsing and serializing of possibly complex data.