Removed Type from PESectionType in Windows Executable File Object and removed associated Types

Remove the Type field from the PESectionType and the associated PESectionTypeEnum and PESectionType that were used in this field. There's no way to accurately characterize the "type" of a section in a PE file, so this field was misleading and also conflicted with the Name field in the PESectionHeaderStructType, which is a more accurate way of capturing this data.

This should close #250.