internal MetaDataStream(NETHeader netheader, NETHeaderReader reader, int headeroffset, int offset, int size,  string name)
 {
     this.headeroffset = headeroffset;
     this.netheader = netheader;
     this.offset = offset;
     this.size = size;
     this.reader = reader;
     this.name = name;
 }
 internal MetaDataHeader(NETHeaderReader reader)
 {
     this.reader = reader;
 }