Initial new icons (#5065)

Co-authored-by: Jesse Glick <jglick@cloudbees.com>
Co-authored-by: Tim Jacomb <21194782+timja@users.noreply.github.com>
Co-authored-by: Félix Queiruga <felix.queiruga@gmail.com>
Co-authored-by: Félix Queiruga <fqueiruga@cloudbees.com>