Removed first element initialization in enums.
Fixed platform definitions for LPC11Exx.
Fixed System Control Block structure.
Added assertions for pin and DMA handlers.
Added assertions after handler initialization instead of return value
checking.
Fixed return value in port calculations for LPC11Exx.
Refactored Pin interrupts.
GpioInterrupt renamed to PinInterrupt.
Embedded linked list replaced with common linked list data structure.
Pin event definitions moved to core pin definitions file.