Create es_CO.po

since translators like to use it we have no choice but to
adhere to poedits write style.  Makes diffing against the
original .pot file almost impossible and will prevent more
automated workflows in the future, but WTH.  :)

lang/es_CO: bring Colombian Spanish to 1% completed

Submitted by: Liu <liuyonghui@grapecity.com>
Edited by: franco@