Added a dockerfile to test building in a different culture

.dockerignore

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-.git
+.git
+Dockerfile.NonEnglish
+Dockerfile

Dockerfile.NonEnglish

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+FROM mcr.microsoft.com/dotnet/sdk:7.0 AS builder
+RUN apt update && \
+    apt install -y \
+        apt-transport-https \
+        gnupg \
+        ca-certificates \
+        curl \
+        locales
+
+RUN apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+# yes, we're using the bullseye (debian 11) image, however mono only has buster, but it still works for bullseye
+RUN echo "deb https://download.mono-project.com/repo/debian stable-buster main" > /etc/apt/sources.list.d/mono-official-stable.list
+RUN apt update
+RUN apt install -y mono-complete
+
+# install dot net 3.1 for running netstandard2.1 tests
+RUN apt install -y wget
+RUN wget https://packages.microsoft.com/config/debian/11/packages-microsoft-prod.deb -O packages-microsoft-prod.deb
+RUN dpkg -i packages-microsoft-prod.deb
+RUN apt update
+RUN apt install -y dotnet-sdk-3.1
+
+
+FROM builder AS build
+WORKDIR /src
+ARG PACKAGE_VERSION=1.0.0
+
+COPY YamlDotNet.sln YamlDotNet.sln
+COPY YamlDotNet/YamlDotNet.csproj YamlDotNet/YamlDotNet.csproj
+COPY YamlDotNet.AotTest/YamlDotNet.AotTest.csproj YamlDotNet.AotTest/YamlDotNet.AotTest.csproj
+COPY YamlDotNet.Benchmark/YamlDotNet.Benchmark.csproj YamlDotNet.Benchmark/YamlDotNet.Benchmark.csproj
+COPY YamlDotNet.Samples/YamlDotNet.Samples.csproj YamlDotNet.Samples/YamlDotNet.Samples.csproj
+COPY YamlDotNet.Test/YamlDotNet.Test.csproj YamlDotNet.Test/YamlDotNet.Test.csproj
+COPY YamlDotNet.Analyzers.StaticGenerator/YamlDotNet.Analyzers.StaticGenerator.csproj YamlDotNet.Analyzers.StaticGenerator/YamlDotNet.Analyzers.StaticGenerator.csproj
+COPY YamlDotNet.Core7AoTCompileTest/YamlDotNet.Core7AoTCompileTest.csproj YamlDotNet.Core7AoTCompileTest/YamlDotNet.Core7AoTCompileTest.csproj
+
+RUN dotnet restore YamlDotNet.sln
+
+COPY . .
+
+# RUN dotnet build -c Release --framework net35 YamlDotNet/YamlDotNet.csproj -o /output/net35
+# RUN dotnet build -c Release --framework net40 YamlDotNet/YamlDotNet.csproj -o /output/net40
+# RUN dotnet build -c Release --framework net45 YamlDotNet/YamlDotNet.csproj -o /output/net45
+# RUN dotnet build -c Release --framework net47 YamlDotNet/YamlDotNet.csproj -o /output/net47
+# RUN dotnet build -c Release --framework netstandard2.0 YamlDotNet/YamlDotNet.csproj -o /output/netstandard2.0
+# RUN dotnet build -c Release --framework netstandard2.1 YamlDotNet/YamlDotNet.csproj -o /output/netstandard2.1
+# RUN dotnet build -c Release --framework net60 YamlDotNet/YamlDotNet.csproj -o /output/net60
+# RUN dotnet build -c Release --framework net70 YamlDotNet/YamlDotNet.csproj -o /output/net70
+
+# RUN dotnet pack -c Release YamlDotNet/YamlDotNet.csproj -o /output/package /p:Version=$PACKAGE_VERSION
+
+
+ARG LOCALE_LANGUAGE="en"
+ARG LOCALE_COUNTRY="DK"
+ARG LOCALE_LOCALE="${LOCALE_LANGUAGE}_${LOCALE_COUNTRY}"
+ARG LOCALE_ENCODING="UTF-8"
+
+ENV LANG="${LOCALE_LANGUAGE}_${LOCALE_COUNTRY}.${LOCALE_ENCODING}"
+ENV LANGUAGE="${LOCALE_LANGUAGE}_${LOCALE_COUNTRY}:${LOCALE_LANGUAGE}"
+ENV LC_ALL="${LOCALE_LANGUAGE}_${LOCALE_COUNTRY}.${LOCALE_ENCODING}"
+
+RUN echo -n "${LC_ALL}" > /etc/locale.gen && \
+    printenv && \
+    apt install -y locales && \
+    locale-gen
+
+RUN dotnet test -c Release YamlDotNet.sln --framework net70 --logger:"trx;LogFileName=/output/tests.net70.trx" --logger:"console;Verbosity=detailed"
+#RUN dotnet test -c Release YamlDotNet.sln --framework net60 --logger:"trx;LogFileName=/output/tests.net60.trx" --logger:"console;Verbosity=detailed"
+#RUN dotnet test -c Release YamlDotNet.Test/YamlDotNet.Test.csproj --framework netcoreapp3.1 --logger:"trx;LogFileName=/output/tests.netcoreapp3.1.trx" --logger:"console;Verbosity=detailed"
+#RUN dotnet test -c Release YamlDotNet.Test/YamlDotNet.Test.csproj --framework net47 --logger:"trx;LogFileName=/output/tests.net47.trx" --logger:"console;Verbosity=detailed"
+
+#FROM alpine
+#VOLUME /output
+#WORKDIR /libraries
+#COPY --from=build /output /libraries
+#CMD [ "cp", "-r", "/libraries", "/output" ]