(issue118) Extend verify_binary to carry an open file * binverify.c: Change result to a structure containing an open fptr Use in Memory data for windows verification. * mainwindow.cpp, selftest.c: Handle the returend structure * binverifytest.cpp: Test for the exclusive read and update signature. * listutil.c: Add optional fptr parameter to read_file

aheinecke@intevation.de=Andre Heinecke
andre.heinecke@intevation.de=Andre Heinecke
bernhard@intevation.de=Bernhard Reiter
rrenkert@intevation.de=Raimund Renkert
wilde@intevation.de=Sascha Wilde
emanuel@intevation.de=Emanuel Schütze