Add docker files for building wine libs more easily

Signed-off-by: falkTX <falktx@falktx.com>

data/docker/.dockerignore

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+# binary files
+*.dll
+*.so
+
+# this script
+build.sh

data/docker/Dockerfile

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+FROM ubuntu:20.04
+LABEL maintainer="falkTX <falktx@falktx.com>"
+ENV DEBIAN_FRONTEND noninteractive
+
+# enable i386
+RUN dpkg --add-architecture i386
+
+# update system
+RUN apt-get update -qq && apt-get upgrade -qqy && apt-get clean
+
+# install packages needed for build
+RUN apt-get install -qqy --no-install-recommends ca-certificates g++-multilib git libgl-dev make openssl pkg-config wget && \
+    apt-get clean
+
+# install newer wine
+RUN mkdir -pm755 /etc/apt/keyrings && \
+    wget -O /etc/apt/keyrings/winehq-archive.key https://dl.winehq.org/wine-builds/winehq.key && \
+    wget -NP /etc/apt/sources.list.d/ https://dl.winehq.org/wine-builds/ubuntu/dists/focal/winehq-focal.sources
+
+RUN apt-get update -qq && \
+    apt-get install -qqy --no-install-recommends winehq-stable wine-stable-dev && \
+    apt-get clean
+
+# fetch Carla
+RUN git clone --recursive https://github.com/falkTX/Carla.git --depth=1 # v4
+WORKDIR /Carla
+
+# build plugin-wine 32bit
+RUN apt-get install -yqq --no-install-recommends libx11-dev:i386 && apt-get clean
+RUN CFLAGS=-m32 CXXFLAGS=-m32 LDFLAGS=-m32 make plugin plugin-wine
+RUN mkdir bin32
+RUN mv bin/CarlaVst*ShellBridged.dll* bin32
+RUN make distclean
+
+# build plugin-wine 64bit
+RUN apt-get install -yqq --no-install-recommends libx11-dev:amd64 && apt-get clean
+RUN CFLAGS=-m64 CXXFLAGS=-m64 LDFLAGS=-m64 make plugin plugin-wine
+RUN mkdir bin64
+RUN mv bin/CarlaVst*ShellBridged.dll* bin64
+RUN make distclean
+
+# build Carla wine bridges
+RUN make wine32 wine64
+
+# CMD for inspection
+CMD ["bash"]

data/docker/build.sh

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+#!/bin/bash
+
+cd $(dirname $0)
+
+rm -rf bin32 bin64 *.dll
+
+set -e
+
+mkdir bin32 bin64
+docker build -t carla-bridge-win .
+docker run -v $PWD:/mnt --rm --entrypoint \
+    cp carla-bridge-win:latest \
+        /Carla/bin32/CarlaVstShellBridged.dll.so \
+        /Carla/bin32/CarlaVstFxShellBridged.dll.so \
+        /mnt/bin32
+docker run -v $PWD:/mnt --rm --entrypoint \
+    cp carla-bridge-win:latest \
+        /Carla/bin64/CarlaVstShellBridged.dll.so \
+        /Carla/bin64/CarlaVstFxShellBridged.dll.so \
+        /mnt/bin64
+docker run -v $PWD:/mnt --rm --entrypoint \
+    cp carla-bridge-win:latest \
+        /Carla/bin/jackbridge-wine32.dll \
+        /Carla/bin/jackbridge-wine64.dll \
+        /mnt