battery: Integrated tlp for power profile switching

[Kalagmitan]

• Implemented the ability to switch between power profiles depending on the power management backend, in this case, tlp or power-profiles-daemon (ppd).
• Added an abstraction layer that checks whether the user uses tlp or ppd, and depending on which one, it will use the corresponding commands for that backend to switch between power profiles.
• The abstraction layer can be potentially expanded upon to include more commands from tlp to be hooked to some tab in the settings to leverage its insane battery customizability.

Some Limitations:

• If some guy changes the power management backend for some reason, the shell will not react to it (it's a waste of performance to make it so). The shells needs to be restarted to make it see the switch.
• Switching power profiles while on tlp will require a password prompt to gain sudo because tlp works differently from ppd, because of this the UX may feel off. The only solution to this is to make the user (or installation script) modify the sudoer file so tlp can just run unrestricted. I'll leave this as is for now tho.

hi.mp4