PWR Extended Exported Constants

Modules
	Shift to apply to retrieve polarity information from PWR_WAKEUP_PINy_xxx constants
	PWR wake-up pins
	Peripheral Voltage Monitoring type
	PWR PVM interrupt and event mode
	PWR Regulator voltage scale
	PWR battery charging resistor selection
	PWR battery charging
	GPIO bit number for I/O setting in standby/shutdown mode
	GPIO port
	PWR PVM external interrupts lines
	PWR PVM event lines
	PWR Status Flags
	Elements values convention: 0000 0000 0XXY YYYYb.
	PWR SRAM2 Retention in Standby mode