Virtual insert

[Droppers]

A major downside of another hex editor control mentioned was that copying large areas in a file (e.g. 50GB) will lead to an OOM exception.

Add functionality to the byte buffer that allows inserting a range that references to somewhere in the source file.

e.g.

var insertOffset = 100;
var virtualOffset = 90000000;
var virtualLength = 999999999; 
buffer.InsertVirtual(insertOffset, virtualOffset, virtualLength);