Make sure we have vim/strace/gdb in the container, since I use it a lot for debugging as well.

Dockerfile-ubuntu1804

@@ -5,6 +5,7 @@ MAINTAINER Ray Burgemeestre
 RUN apt-get update && \
     apt-get -y install g++ git sudo wget gnupg2 && \
     apt-get -y install libssl-dev build-essential && \
+    apt-get -y vim gdb strace && \
     \
     echo deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-9 main >> /etc/apt/sources.list && \
     echo deb-src http://apt.llvm.org/bionic/ llvm-toolchain-bionic-9 main >> /etc/apt/sources.list && \