shell: Install neovim and btop

shell/tasks/shell.yml

@@ -5,6 +5,7 @@
     name:
       - git
       - vim
+      - neovim
       - vim-scripts
       - zsh
     state: present
@@ -18,6 +19,7 @@
     name:
       - aptitude
       - atop
+      - btop
       - build-essential
       - curl
       - dnsutils