added task and setup files

Author: koushik-alpha

ProgrammingTask.md

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+### Task 1
+Create a simple program in ROS do perform the desired maneuver as described below:
+1. Spawn a Turtle and draw a circle with it.
+2. when the first circle is drawn, the program must stop the first turtle, and call a service to spawn another turtle where the first turtle stopped.
+3. The second turtle should draw another circle larger than the initial circle, and stop when the circle is drawn
+### Task 2
+##### Objectives:
+1. Create a program to detect a coloured ball from camera input and track its movements. 
+2. Publish its coordinates with respect to the screen and with respect to the camera's coordinate frame onto different topics
+		for the coordinates with respect to the camera's coordinate frame, three dimensional coordinates are required.
+3. Create a different node that subscribes to the first topic , and moves a turtle in turtlesim such that it mimics the movements of the ball (if the ball is moved to the right, the turtle moves to the right as well.)

ros2setup.md

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+
+# Software Installation
+
+## OS and ROS versions 
+    Ubuntu 22.04
+    ROS2 Humble
+
+## Ubuntu 22.04 Installation guide 
+
+[Installation Guide](https://ubuntu.com/tutorials/install-ubuntu-desktop#1-overview)
+
+## Ros2 humble Installation guide
+
+### 1. Set locale:
+ Make sure you have a locale which supports “UTF-8”. For this try the following commands.
+
+```bash 
+locale  # check for UTF-8
+
+sudo apt update && sudo apt install locales
+sudo locale-gen en_US en_US.UTF-8
+sudo update-locale LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8
+export LANG=en_US.UTF-8
+
+locale  # verify settings
+```
+
+### 2. Setup Sources:
+You will need to add the ROS 2 apt repository to your system.
+
+First ensure that the Ubuntu Universe repository is enabled
+
+```bash 
+sudo apt install software-properties-common
+sudo add-apt-repository universe
+
+```
+Now add the ROS 2 GPG key with apt.
+
+```bash 
+sudo apt update && sudo apt install curl -y
+sudo curl -sSL https://raw.githubusercontent.com/ros/rosdistro/master/ros.key -o /usr/share/keyrings/ros-archive-keyring.gpg
+
+```
+Then add the repository to your sources list.
+
+```bash 
+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" | sudo tee /etc/apt/sources.list.d/ros2.list > /dev/null
+
+```
+### 3.Install Ros2 packages
+Update your apt repository caches after setting up the repositories.
+
+```bash
+sudo apt update
+```
+ROS 2 packages are built on frequently updated Ubuntu systems. It is always recommended that you ensure your system is up to date before installing new packages.
+
+```bash
+sudo apt upgrade
+```
+Desktop Install 
+```bash
+sudo apt install ros-humble-desktop
+```
+### 4. Environment Setup:
+Set up your environment by sourcing the following file.
+```bash
+source /opt/ros/humble/setup.bash
+```
+Automatically add ROS environment variables to your bash session every time a new shell terminal/bash is launched, enter the following command.
+```bash
+echo "source /opt/ros/humble/setup.bash" >> ~/.bashrc
+```
+Sourcing bashrc ensures to use updated bashrc using the following command, or it can be done by closing all terminals and re-opening a new terminal.
+```bash
+source ~/.bashrc
+```
+## Installation check
+
+In one terminal, source the setup file and then run a C++ talker:
+```bash
+ros2 run demo_nodes_cpp talker
+```
+
+In another terminal source the setup file and then run a Python listener:
+```bash
+ros2 run demo_nodes_py listener
+```
+You should see the talker saying that it’s publishing messages and the listener saying I heard those messages. This verifies both the C++ and Python APIs are working properly.
+
+
+```
+
+