Add docker build

Dockerfile

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+FROM debian:bullseye as build
+ARG TARGETARCH
+ARG TARGETVARIANT
+
+ENV LANG C.UTF-8
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN echo "Dir::Cache var/cache/apt/${TARGETARCH}${TARGETVARIANT};" > /etc/apt/apt.conf.d/01cache
+
+RUN --mount=type=cache,id=apt-build,target=/var/cache/apt \
+    mkdir -p /var/cache/apt/${TARGETARCH}${TARGETVARIANT}/archives/partial && \
+    apt-get update && \
+    apt-get install --yes --no-install-recommends \
+        build-essential \
+        cmake \
+        pkg-config \
+        libespeak-ng-dev \
+        libpcaudio-dev
+
+WORKDIR /build
+
+# Copy onnxruntime library
+COPY lib/ ./lib/
+RUN mkdir -p /usr/local/include/onnxruntime && \
+    tar -C /usr/local/include/onnxruntime \
+        --strip-components 1 \
+        -xvf "lib/onnxruntime-${TARGETARCH}${TARGETVARIANT}.tgz"
+
+# Build larynx binary
+COPY Makefile ./
+COPY src/cpp/ ./src/cpp/
+RUN make release
+
+# -----------------------------------------------------------------------------
+
+FROM scratch
+
+COPY --from=build /usr/local/include/onnxruntime/lib/libonnxruntime.so.* ./
+COPY --from=build /build/build/larynx ./

Dockerfile.dockerignore

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+*
+!Makefile
+!src/cpp/
+!lib/

lib/onnxruntime-amd64.tgz

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+onnxruntime-linux-x64-1.12.1.tgz

lib/onnxruntime-arm64.tgz

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+onnxruntime-linux-aarch64-1.12.1.tgz

lib/onnxruntime-armv7.tgz

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+/home/hansenm/opt/mimic3-cpp/lib/onnxruntime-linux-armhf-1.12.0.tgz