util: Added disassembler using objdump tool.

The disassembler disassembles an elf file with
an external objdump tool.
The architecture specific objdump must be configured
via cmake (ARCH_TOOL_PREFIX), e.g. arm-none-eabi- for
arm-none-eabi-objdump.

src/experiments/kesorefs/experiment.hpp

@@ -14,6 +14,7 @@ class KESOrefs : public fail::ExperimentFlow {
   fail::Logger m_log;
   fail::MemoryManager& m_mm;
   fail::ElfReader m_elf;
+  fail::Disassembler m_dis;
 
   void printEIP();
   void setupExitBPs(const std::string&);