Add further ieee754_2008 functions/predicates.
Add further ieee754_2008 functions/predicates.

aep/clay,mario-campos/clay,mario-campos/clay,aep/clay,aep/clay,jckarter/clay,mario-campos/clay,iamrekcah/clay,jckarter/clay,jckarter/clay,jckarter/clay,jckarter/clay,iamrekcah/clay,aep/clay,mario-campos/clay,iamrekcah/clay,iamrekcah/clay,mario-campos/clay,aep/clay,aep/clay,jckarter/clay,iamrekcah/clay