Guiding laplacians to restore clipped highlights

[priort (Todd Prior)]

I merged the HR branch from @anon41087856 into a portable windows build a few days ago to include also Filmic V6 and the sigmoid code if you run windows you can test it out quickly with no install…

Portable Custom WIndows Build of Darktable with Sigmoid, Filmic v6 and new Laplacian HLR

Build on Alderlake CPU EDIT: Generic portable build This build is compiled to include some features not yet merged and an alternate tone mapper that has had a lot of discussion. Basically it is built and installed on my PC and then zipped with a couple of small modifications to let it run from that folder. I have added a small batch file that runs it using a local config directory in the install folder and from any relative location where you might want to put it. I have also not changed …