SKN Miner Linux build of ccminer-verus
========================================
Base: https://github.com/Oink70/ccminer-verus (GPLv2, see per-file headers)

Patches applied for portable distribution (Ubuntu 22.04 build host):
- Makefile: replaced -march=native with -march=x86-64-v2 -maes -mavx -mpclmul
  (native would bake in whatever extra instruction sets happen to be present
  on the specific build machine's CPU, which could crash with "illegal
  instruction" on a user's different CPU; this targets exactly what
  VerusHash's optimized path already requires - AES-NI, AVX, PCLMUL - a
  baseline covered by effectively any x86_64 CPU from ~2013 onward)
- util.cpp (gpulog): fixed upstream format-string bug that silently dropped
  the hashrate argument from periodic per-thread log lines

Verified against pool.sinarlink.com directly: 22/22 shares accepted in a
live test run before packaging.

This binary is spawned by the SKN Miner Electron app as a separate
subprocess (not statically linked into the app) and is unmodified in
behavior from upstream ccminer-verus aside from the portability fixes above.
