chore: Move all hardware tests into one subdir

Hello_World/.cproject

Hello_World/.gdbinit

Hello_World/.project

Hello_World/.settings/language.settings.xml

Hello_World/Makefile

Hello_World/build_image

bmatest/.cproject

bmatest/.gdbinit

bmatest/.project

bmatest/.settings/language.settings.xml

bmatest/Makefile

bmatest/build_image

bmetest/.cproject

bmetest/.gdbinit

bmetest/.project

bmetest/.settings/language.settings.xml

bmetest/Makefile

bmetest/build_image

ecgtest/.cproject

ecgtest/.gdbinit