re-add hiding body feature
add a seeding script to automatically seed the needed instrument questions
add panel switching/toggling and validation
check all questions before submitting the panelform
add the submission of a panel
create Instrument session migration + fix answer migration
fix choise seeder -> missing choises for question 19
fix multiple answer instrument rendering, need input to be array
make sure the last panel has a submit too
add model for questionnaire survey session
Fix relation for choises in the answer model
expand construction of questionnaire memorizer to hold all dependencies
add method to retrieve mantelzorger and oudere
add helper methods to get answers and store them into the session store
implement a method to save a question into the session store
refactor memorizer to use a helper method for explanations
refactor getter and setter for memorizing oudere
refactor namespace for instrument answers
add meta field to question
update answer model to hold session information