Adding in some required utilties (#23)

* Adding in some required utilties

For the simulation next semester, it would be useful to let
the students have access to numpy as a math manipulation package.
I also need to have valgrind as we move to more use of docker
as our preferred way to run the grader. This should handle both
of the issues.

* Responding to PR

Good point. This should remove pip.

dockerfiles/csci4210/ubuntu22.04/Dockerfile

@@ -19,3 +19,15 @@ RUN apt-get update \
     && apt-get -y --no-install-recommends install gcc g++ \
     && rm -rf /var/lib/apt/lists/*
 
+# Install Valgrind
+RUN apt-get update \
+    && apt-get -y --no-install-recommends install valgrind \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install numpy
+RUN apt-get update \
+    && apt-get -y --no-install-recommends install python3-pip \
+    && pip3 install numpy \
+    && apt-get -y remove python3-pip \
+    && rm -rf /var/lib/apt/lists/*
+