feat: create dedicated os.d dir for os specific install

os.d/ubuntu.bash

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+if (grep -q Ubuntu <(lsb_release -i)); then
+    sudo apt update
+    sudo apt upgrade -y
+
+    sudo apt install -y coreutils grep less tar tree
+    sudo apt install -y man manpages-fr manpages-fr-extra
+    sudo apt install -y bash zsh fish
+    sudo apt install -y screen tmux
+    sudo apt install -y openssh mosh
+    sudo apt install -y vim git #tig
+    sudo apt install -y wget curl lftp fping mtr socat
+fi