Build: configure: make "features" definition more appropriate

Used for output of "pacemakerd --features"

• Add feature entries for build-time options: books monotonic remote servicelog ipmiservicelogd

• Rename feature entries: lha-fencing -> lha corosync-native -> corosync-ge-2

• Drop feature entries for features always present: libqb-logging libqb-ipc atomic-attrd

• Trim surplus whitespace