Credit: Emile Holba commissioned by Dimensions. Not-for-profit support provider Dimensions is launching a new photography project, giving a platform for people with learning disabilities and autism to show their most prized possessions.   The project, being previewed in Cardiff today by Dimensions Cymru and is the first of its kind to explore how seemingly everyday objects can play a vital role in giving people with autism and learning disabilities agency and ownership over their lives.   Personal possessions help all of us…