Update cmake on Ubuntu 16.04/18.04/20.04

update_cmake_ubuntu.sh

#!/bin/bash

# Uninstall the default version of cmake
sudo apt remove cmake
sudo apt clean all

# Add Kitware apt repository
sudo apt install wget
wget -qO - https://apt.kitware.com/kitware-archive.sh | sudo bash

# Install cmake from Kitware repository
sudo apt update
sudo apt install cmake