[feature] Dockerization!

Adding Docker support. Builds from a base Ubuntu Jammy image with ROS 2 Humble. 

Solves #43 entirely. Complete multiplatform support is contingent upon #35 which is essentially blocked by having intelligent OpenCV rules.

Dockerfile

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+# Author: Adeeb Abbas
+# Decription: Dockerfile for building a Docker image for ROS 2 Humble w/ Jammy. Allows us to build our ROS2 repos easily in the lab. 
+# Steps to use it (assuming you have Docker installed):
+# 1. Clone this repo
+# 2. cd into the repo
+# 3. Run the following commands - 
+#    docker build -t ros-humble-slam .
+#    docker run -it --rm ros-humble-slam
+# Once you're in the container, you can run the following commands to build the Outdoor ROS repos -
+# clone the outdoor_ros2_slam repo. This repo contains the ROS2 packages for the SLAM project (#TODO: Automate this step/make it a part of the Dockerfile)
+# bazel build //... --define NO_DREAL=ON -j 1 
+# Limiting the jobs just because you might run out of memory as the build is memory intensive, and it's painful to 
+# to restart the whole thing again. Feel free to change it. Make sure your docker settings allow upto 8gb ram. 
+
+# Use the official Ubuntu 22.04 as the base image
+FROM ubuntu:22.04
+
+# Set environment variables
+ENV DEBIAN_FRONTEND=noninteractive
+ENV TZ=UTC
+
+# Update and upgrade the system
+RUN apt-get update && \
+    apt-get upgrade -y && \
+    apt-get install -y tzdata
+
+# Install necessary dependencies for the script
+RUN apt-get install -y wget unzip curl software-properties-common lsb-release python3-pip
+
+# Install npm
+RUN apt-get install -y npm
+
+# Install Bazelisk using npm
+RUN npm install -g @bazel/bazelisk
+
+# Run Bazelisk to install Bazel
+RUN bazelisk
+
+# Run the commands from the script (slightly modified ros-humble-installer.sh) directly
+RUN wget -q -O /tmp/drake-setup.zip https://github.com/RobotLocomotion/drake/archive/refs/heads/master.zip && \
+    unzip -q /tmp/drake-setup.zip -d /tmp && \
+    yes | bash /tmp/drake-master/setup/ubuntu/install_prereqs.sh && \
+    rm -rf /tmp/drake-setup.zip /tmp/drake-master && \
+    add-apt-repository universe && \
+    apt-get update && \
+    apt-get install -y curl && \
+    curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -o /usr/share/keyrings/ros-archive-keyring.gpg && \
+    apt-get update && \
+    apt-get upgrade -y && \
+    apt-get install -y software-properties-common && \
+    add-apt-repository universe && \
+    apt-get update && \
+    apt-get install -y curl && \
+    curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -o /usr/share/keyrings/ros-archive-keyring.gpg && \
+    echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/ros-archive-keyring.gpg] http://packages.ros.org/ros2/ubuntu $(. /etc/os-release && echo $UBUNTU_CODENAME) main" | tee /etc/apt/sources.list.d/ros2.list > /dev/null && \
+    apt-get update && \
+    apt-get install -y ros-humble-desktop && \
+    apt-get install -y ros-dev-tools && \
+    # it will yell at you because it's root and what not.. just ignore it
+    rosdep init && \ 
+    rosdep update && \
+    echo "source /opt/ros/humble/setup.bash" >> ~/.bashrc && \
+    apt-get update && \
+    apt-get install -y python3-colcon-common-extensions && \
+    apt-get install -y ros-humble-rmw-cyclonedds-cpp && \
+    pip3 install toposort && \
+    apt-get install -y $(apt-cache search gflags | awk '{print $1}') && \
+    apt-get install -y libsuitesparse-dev && \
+    apt-get install -y ros-humble-vision-opencv
+
+# Set the entrypoint to source ROS setup.bash and run a bash shell
+ENTRYPOINT ["/bin/bash", "-c", "source /opt/ros/humble/setup.bash && exec /bin/bash -i"]