Returns the full name of brain regions given the structure IDs, e.g. 'Allen:10657' as used throughout the ABAEnrichment package. The full name is composed of an acronym and the name as used by the Allen Brain Atlas project [1-2].
a vector of brain structure IDs, e.g. c('Allen:10657','Allen:10173')
vector of the full names of the brain structures; composed of acronym, underscore and name.
The acronym is added because the names alone are not unique.
 Allen Institute for Brain Science. Allen Human Brain Atlas [Internet]. Available from:
 Allen Institute for Brain Science. BrainSpan Atlas of the Developing Human Brain [Internet]. Available from: http://brainspan.org/