public ElfDynamicType getTagType() {
		return elf.getDynamicType(d_tag);
	}
Returns the enum value that controls the interpretation of the 
the d_val and/or d_ptr (or null if unknown).
@return the enum tag (or type) of this dynamic or null if unknown
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/elf/ElfDynamic.java