- add preview_get() and description_get(), breaking ABI badly.
- add abi_version field to be fileld with EDJE_EXTERNAL_TYPE_ABI_VERSION
and checked with edje_external_type_abi_version_get()
SVN revision: 44135
This is the recommended way to register a batch of types, it will not
do check (hash lookup) before adding and keys are added as "direct"
(not copied), thus lighter on memory.
SVN revision: 44102