v3.7.0

RxInfer v3.7.0

Diff since v3.6.1

Merged pull requests:

• Add custom node contraction (#342) (@blolt)
• Add UnfactorizedData (#356) (@wouterwln)

Closed issues:

• Allow contraction of composite nodes (#287)
• Predictions in the Bike Rental Demand demo are worse than in RxInfer v2 due to factorization constraints (#291)
• Initialization sometimes causes exponential scaling in runtime (#353)
• Prediction of data variables when some are missing (#355)
• Linear model with log-link on sigma (exp(sigma)) errors: are there plans to support it in the future? (#357)