kernel/modules: kmod-sched-core: add missing dependency, useful module

kernel/modules: kmod-sched-core: add missing dependency, useful module

All tc ematch modules, including those in kmod-sched-core and kmod-sched,
use cls_basic as a core dependency. Relocate cls_basic from kmod-sched to
kmod-sched-core to avoid requiring kmod-sched unnecessarily.

This change is also backwards compatible since any past tc ematch users
will have had to install both kmod-sched-core and kmod-sched anyway.

Add the matchall kernel module cls_matchall introduced in kernel 4.8. The
matchall classifier matches every packet and allows the user to apply
actions on it. It is a simpler, more efficient replacement for the common
but cryptic tc classifier idiom "u32 match u32 0 0".

Signed-off-by: Tony Ambardar <itugrok@yahoo.com>