* adds command sync_codelist
* provides updating of all codes to the newest version (id)
* must be run once on staging, can be dropped afterwards since the root for the problem has been resolved on the codelist management application
* adds model and form mixin for PIK
* integrates mixins for compensation, ema and ecoaccount
* adds migration files
* extends API
* extends API test data
* adds is_xy fields to compensation, ema and ecoaccount reports
* adds is_pik information to detail views
* adds/updates translations
* changes action_type from ForeignKey into M2M
* adds migration
* changes form widget
* WIP: changes rendering on detail view of compensation
* TEST NOT CHECKED YET!
mpeltriaux