WIP: Initiative issue

Kind of hacky, but working. Just working out a test kink.

Using `this.controller.content` to access what's submitted by the form, cause passing an object to the submit action, which is the way shown on EasyForm examples, doesn't work for me.

Haven't found a way to nest models with EasyForm, so the form has issue fields as initiative attributes ('issue_title', 'issue_description').

@KatiRG @Qianfinland feel free to ask questions in the comments