message: Run buildnwnx.sh instead of custom command
diff: FROM jakkn/nwnxee-builder as builder
  WORKDIR /nwnx/home
  COPY ./ .
  -WORKDIR /nwnx/build
  # compile nwnx
  -RUN CC="gcc -m32" CXX="g++ -m32" cmake .. && make
  +RUN Scripts/buildnwnx.sh
  FROM beamdog/nwserver
  RUN mkdir /nwn/nwnx
  