Make all commands OS agnostic

[anistark]

Currently, it works fine with ubuntu, fedora and raspberry pi devices.

Should improve the os_parse function in helpers.py

Add support for Arch Linux distros

Arch Linux distros like Manjaro are gaining popularity and we need to add support for it.

We can try aliases. Like:

alias "pacman -Sy"="apt update"
alias "pacman -Su"="apt upgrade"

Or,
We can use yaourt instead of pacman.

alias yaourt="apt install.
alias "pacman -Rns"="apt purge"
alias "pacman -Rns $(pacman -Qtdq)"="apt autoremove"

...etc.

These can then be put in ~/.bashrc or ~/.zshrc or called from a local os config file.

Here's all that I could find:

Action	Arch	Red Hat/Fedora	Debian/Ubuntu	SLES/openSUSE	Gentoo
Install a package(s)	pacman -S	dnf install	apt install	zypper install	emerge [-a]
Remove a package(s)	pacman -Rs	dnf remove	apt remove	zypper remove	emerge -C
Search for package(s)	pacman -Ss	dnf search	apt search	zypper search	emerge -S
Upgrade Packages	pacman -Syu	dnf upgrade	apt update; apt upgrade	zypper update	emerge -u world
...