Change value of a quad word
ea - linear address
value - new value of the quad word
Returns: 1 if the database has been modified,
0 if either the debugger is running and the process' memory
has value 'value' at address 'ea',
or the debugger is not running, and the IDB
has value 'value' at address 'ea' already.
success patch_qword(long ea, long value);