remove code to use MemoryScanner from r204 (I think we fixed the error in the last commit)

change address from uint to int

+ catch, log and throw errors

+ add exception logic to ensure provider is open

remove

DumpMemoryToByteArray(): set byte_alignment to 1

+ add success/failure messages for ram dump

DumpMemory(): write out using 100mb blocks

+ add support to dump ram to file (even if it is ~2gb or more)

Force the use of the enum values for these types
public struct IMAGE_FILE_HEADER
{
  public MachineType Machine;
  public DllCharacteristicsType Characteristics;
}

+ add support for selecting process by different means