Added CLI test project and tests for 'm4g init' command

Dockerfile

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+FROM mcr.microsoft.com/dotnet/sdk:8.0-bookworm-slim
+
+# Copy the files to the /tool directory.
+WORKDIR /tool
+COPY . .
+# Manually add a reference to MycroForge.Core in the MycroForge.PluginTemplate project,
+# otherwise it will try to fetch it from a nuget repository.
+RUN dotnet add MycroForge.PluginTemplate reference MycroForge.Core
+
+# Install the tools required for testing
+RUN apt update -y && \
+    apt upgrade -y && \
+    apt install -y git && \
+    apt install -y bash && \
+    apt install -y python3 && \
+    apt install -y python3-pip && \
+    apt install -y python3-venv 
+
+# Publish the CLI as a global tool and add the .dotnet/tools folder the the PATH variable.
+WORKDIR /tool/MycroForge.CLI
+RUN ./scripts/publish-tool.sh
+ENV PATH="$PATH:/root/.dotnet/tools"
+
+WORKDIR /test
+
+SHELL ["/bin/bash", "-c"]
+
+ENV PATH="$PATH:/root/.dotnet/tools"
+
+CMD ["sleep", "infinity"]