can modify the MainEnd value

Some game the pointer chain is located in the main segments. The concept of one jump from Main to Heap and continue in heap is not correct for these games. A quick fix to support this kind of game is to edit MainEnd entry with a guess for now. This feature will need dump from EdiZon SE 3.7.7 to work. In future release may change the name of the field that is call "MainEnd" to better reflect what it really is now that MainEnd isn't always what we want to put in this field.

updated sysmodule is needed for wifi dump to support this new feature.