added init script

- Added init script which manages installation of python version, create venvs and install the required dependencies.

init.sh

@@ -0,0 +1,20 @@
+# checking the OS type and intalling python verison accordingly
+# for macOS and linux
+if [[ "$OSTYPE" == "darwin"* ]]; then
+    echo "Running on macOS"
+    brew install python@3.11
+
+
+elif [[ "$OSTYPE" == "linux-gnu"* ]]; then
+    echo "Running on Linux"
+    sudo apt update
+    sudo apt install python3.11
+
+# in case of other OS types 
+else
+    echo "Install python 3.10 manually"
+fi
+
+python3.10 -m venv ./venvs/python_3_10
+source ./venvs/python_3_10/bin/activate
+pip install -r requirements.txt