Merge pull request #3 from MythicMeta/v3.0.0

adding intel->arm linux cross compiler to go image

mythic_go_base/Dockerfile

@@ -12,7 +12,7 @@ RUN apt-get -y update && \
     apt-get -y upgrade && \
     apt-get install --no-install-recommends \
       software-properties-common apt-utils make build-essential libssl-dev zlib1g-dev libbz2-dev \
-      xz-utils tk-dev libffi-dev liblzma-dev libsqlite3-dev protobuf-compiler -y  && \
+      xz-utils tk-dev libffi-dev liblzma-dev libsqlite3-dev protobuf-compiler gcc-aarch64-linux-gnu -y  && \
     apt-get purge -y && \
     rm -rf /var/lib/apt/lists/* && \
     apt-get clean