lib-clay/algorithms/strings: add begins-/endsWith, trim*, trim*Slice
lib-clay/algorithms/strings: add begins-/endsWith, trim*, trim*Slice

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