Added template for "year page": https://se.wikimedia.org/wiki/Mall:Årsida.

The "simple" pages, i.e. those that require no further logic than changing the year, now have templates. These are substituted with year as sole parameter.

I just ran the bot to create these pages and at a glance it looks OK. There were a few pages that were already created (and therefore not overwritten) that I need to check if the bot would have handled correctly. Categories also remains.

@Jopparn, could you have a look at the created pages and see if you spot something wrong?

Are categories done?