Some icons requested by the WCIF

[jfly]

(related to #4) See the definition of ActivityCode from the WCIF:

Some common other activities have defined IDs:

• other-registration: Registration
• other-breakfast: Breakfast
• other-lunch: Lunch
• other-dinner: Dinner
• other-awards: Awards

[mintydev789]

Maybe both the breakfast and the lunch icons could just be a knife and a fork, kinda like this.