[MISC] Add MemoryBuffer class
[LINK][ELF] ElfImporter now use MemoryBuffer
[ULD] Correct bug
[LINK] Add class and type field to LinkContext
[LINK] Start ELF parsing
[ELF] Add elf section header infos
[LINK][ELF] Add import of shstrtab section
[ELF] Correct Section header structure
[LINK] Add Fragment class
[MISC] Optimize Symbol comparaison
[LINK] Update Fragment structure
[LINK][ELF] Add import of sections (except symtbl and relloc)