yunoadmin/pihole_ynh: copy of pihole as a reamke @ 20879973c19a22f5625144d937047aa8b8698e27

Maniack Crudelis 20879973c1 Add admin for restore		%!s(int64=8) %!d(string=hai) anos
..
_common.sh	20879973c1 Add admin for restore	%!s(int64=8) %!d(string=hai) anos
_variables	0fd75e059e Update helpers & fix backup	%!s(int64=9) %!d(string=hai) anos
backup	0fd75e059e Update helpers & fix backup	%!s(int64=9) %!d(string=hai) anos
change_url	9123b4c586 Fix change url	%!s(int64=8) %!d(string=hai) anos
install	78ab718b4b Use new helpers	%!s(int64=8) %!d(string=hai) anos
remove	78ab718b4b Use new helpers	%!s(int64=8) %!d(string=hai) anos
restore	20879973c1 Add admin for restore	%!s(int64=8) %!d(string=hai) anos
upgrade	78ab718b4b Use new helpers	%!s(int64=8) %!d(string=hai) anos