Mass refactor (incomplete), transition from portabiility.h to cpu.h, part 2

Makefile

miosix/Makefile

miosix/Makefile.kcommon

miosix/arch/common/core/armv4/interfaces-impl/cpu.cpp

...x/arch/common/core/armv4/interfaces-impl/cpu_const_impl.h

miosix/arch/common/core/armv4/interfaces-impl/cpu_impl.h

miosix/arch/common/core/armv6m/interfaces-impl/cpu.cpp

.../arch/common/core/armv6m/interfaces-impl/cpu_const_impl.h

miosix/arch/common/core/armv6m/interfaces-impl/cpu_impl.h

miosix/arch/common/core/armv7m/interfaces-impl/cpu.cpp

.../arch/common/core/armv7m/interfaces-impl/cpu_const_impl.h

miosix/arch/common/core/armv7m/interfaces-impl/cpu_impl.h

miosix/arch/common/core/armv7m_fpu/interfaces-impl/cpu.cpp

...h/common/core/armv7m_fpu/interfaces-impl/cpu_const_impl.h

...ix/arch/common/core/armv7m_fpu/interfaces-impl/cpu_impl.h

miosix/arch/common/core/interrupts_cortexMx.cpp

miosix/arch/common/core/interrupts_cortexMx.h

miosix/arch/cortexM0_stm32f0/common/arch_settings.h

miosix/arch/cortexM0plus_rp2040/common/arch_settings.h

miosix/arch/cortexM3_efm32gg/common/arch_settings.h