0.1 Header files

• kernel/include/ftoa.h
• kernel/include/isr.h
• kernel/include/logging.h
• kernel/include/processor.h
• kernel/include/pwr.h
• kernel/include/rcc.h
• kernel/include/register_utils.h
• kernel/include/rtc.h
• kernel/include/string.h
• kernel/include/version.h