Move ELF test files to 'tests' directory

.gitignore

.vscode/launch.json

tests/ELFIOTest.cpp

tests/ELFIOTest1.cpp

tests/elf_examples/64bitLOAD.elf

tests/elf_examples/ARMSCII-8.so

tests/elf_examples/arm_v7m_test_debug.elf

tests/elf_examples/arm_v7m_test_release.elf

tests/elf_examples/asm

tests/elf_examples/asm.lst

tests/elf_examples/asm.o

tests/elf_examples/asm.readelf

tests/elf_examples/asm.s

tests/elf_examples/asm64

tests/elf_examples/asm64.lst

tests/elf_examples/asm64.o

...f_examples/crash-060833f08dc14d1712428742b3cad7af17b36bb7

...f_examples/crash-7d695153fd8052529d480c2352d4ada33a44bada

...f_examples/crash-b82f05b0b25c8fdc98480e6d76b6d5f9164ae2bc

...f_examples/crash-e1ce7cecf01cf800397a4302854d9d76fa19763c