Rename boot_makemeta as boot_core_class_object
Rename boot_makemeta as boot_core_class_object

This function builds the class object of core classes. This commit also puts some internal renames to clarify the implementation and adds some docs.
suyesh/opal,Ajedi32/opal,kachick/opal,catprintlabs/opal,gabrielrios/opal,fazibear/opal,wied03/opal,c42engineering/opal,Mogztter/opal,c42engineering/opal,jannishuebl/opal,kachick/opal,castwide/opal,opal/opal,wied03/opal,iliabylich/opal,Flikofbluelight747/opal,gausie/opal,gabrielrios/opal,merongivian/opal,opal/opal,jannishuebl/opal,Mogztter/opal,iliabylich/opal,catprintlabs/opal,castwide/opal,castwide/opal,Flikofbluelight747/opal,gabrielrios/opal,fazibear/opal,merongivian/opal,jgaskins/opal,iliabylich/opal,bbatsov/opal,domgetter/opal,jannishuebl/opal,Ajedi32/opal,jgaskins/opal,catprintlabs/opal,suyesh/opal,Mogztter/opal,c42engineering/opal,Flikofbluelight747/opal,opal/opal,gausie/opal,domgetter/opal,Ajedi32/opal,bbatsov/opal,fazibear/opal,kachick/opal,suyesh/opal,kachick/opal,gausie/opal,jgaskins/opal,merongivian/opal,bbatsov/opal,opal/opal,Mogztter/opal,wied03/opal