Move etc under sys/$OS

so we can track configs for different OSes.

diff --git a/etc/apt/sources.list b/sys/debian/etc/apt/sources.list
similarity index 100%
rename from etc/apt/sources.list
rename to sys/debian/etc/apt/sources.list

diff --git a/etc/sudoers.d/siraaj_backlight b/sys/debian/etc/sudoers.d/siraaj_backlight
similarity index 100%
rename from etc/sudoers.d/siraaj_backlight
rename to sys/debian/etc/sudoers.d/siraaj_backlight

diff --git a/etc/sudoers.d/siraaj_dmesg b/sys/debian/etc/sudoers.d/siraaj_dmesg
similarity index 100%
rename from etc/sudoers.d/siraaj_dmesg
rename to sys/debian/etc/sudoers.d/siraaj_dmesg

diff --git a/etc/systemd/system/xscreensaver.service b/sys/debian/etc/systemd/system/xscreensaver.service
similarity index 100%
rename from etc/systemd/system/xscreensaver.service
rename to sys/debian/etc/systemd/system/xscreensaver.service

diff --git a/etc/default/tlp b/sys/ubuntu/etc/default/tlp
similarity index 100%
rename from etc/default/tlp
rename to sys/ubuntu/etc/default/tlp