based on vcvrack v1.1.6 (fifth edition)

• remove sfizz samplers - it did not work properly: i often got very high latencies or cpu usage when using the sifzz samplers due to the requirement to have multiple audio interfaces in vcvrack (which is not working very well and very unreliable) to get the sfizz audio back into vcvrack
• allow to disable cpu cores to reduce heat produced
• a lot fo cleanup under the hood
• initial support for some allwinner h6 tv boxes (tested with eachlink mini and q-plus - they have nearly as much cpu power as the raspberry pi 4, but they run very hot and thus need a lot of extra cooling, which is not easy to achieve)
• raspberry pi 4 status: it should work on the 1gb, 2gb and 4gb model (with a hack for now to limit the used ram to 1gb) but it does not work yet on the 8gb model