This reverts commit e61f485a, reversing
changes made to 00c47d07.

The folder where the disk cache lives was originally renamed from llvfs to llcache but @henri's suggestion that that doesn't reflect the other files in the same place and it should be llfilesystem is a good one so I changed it over

First part of change to remove LLVFS from the Viewer. Consists of code changes to remove LLVFS and LLVFSThread classes along with the associated source files. The existing llvfs folder is renamed to llcache. Also includes changes to CMake script in many places to reflect changes. Eventually, llvfile source file and class will be renamed but that is not in this change.

This reverts commit f8ccb750

This reverts commit f8ccb750.

MAINT-4532: properly detect Windows 10 in the 64bit build (only - 32bit runs in Windows 8 compatibility mode)

MAINT-5687: Remove old webkit from the make files and the repo.  Ensure that it is no longer meaningfully referenced.

Remove legacy udp script upload methods,
Refactor script runtime perms from three arrays to one struct array so we don't have to juggle array order anymore.