This commit removes the `ctx_shell` declaration from the Bluetooth shell,
marking a milestone in eliminating this dependency.
Signed-off-by: Pisit Sawangvonganan <pisit@ndrsolution.com>
Moves around the shell files so that they are placed nearer
to the features they expose access to.
A few changes as possible has been made.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>