Elf file refactoring
Updated and refactored the code for reading and using elf files. Removed a lot of dead or unused code. Changes are mostly related to the elfFile.h and elfFile.cpp, but basic_simulator has also been updated.
Updated and refactored the code for reading and using elf files. Removed a lot of dead or unused code. Changes are mostly related to the elfFile.h and elfFile.cpp, but basic_simulator has also been updated.