public int e_version() {
		return e_version;
	}
This member identifies the object file version,
where "EV_NONE == Invalid Version" and "EV_CURRENT == Current Version"
The value 1 signifies the original file format; extensions will 
create new versions with higher numbers. 
The value of EV_CURRENT, though given as 1 above, will change as
necessary to reflect the current version number.
@return the object file version
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/ElfHeader.java