Description

We require different parameters for the studyPar and the dataPar, so good to split this.

Tasks

• the legacy option to accept dataPar.m and convert this to dataPar.json doesn't apply to the studyPar
• the iteration over studyPars doesn't apply to dataPar
• the legacy GROUP and LOAD parsings doesn't apply to studyPar
• the deprecated field check doesn't apply to studyPar
• parsing the Q struct doesn't apply to studyPar
• the conversion of strings containing numbers can be replaced for both using xASL_str2num
• fixing the matlab notation '' to the json notation "" doesn't apply to studyPar
• Header explanation is outdated for both

How to test

Optional: insert description about how to test the code changes here

Release notes

Required: summarize the changes for the release notes here