vchoi_fork

[svn-r11894] Purpose:
Feature, address bug #426

Description:
The h5perf test now also keeps track of the time it takes to:

open a file: Time between start of open and start first read/write
close a file: Time between end of last read/write and end of close.

This information is only displayed if debug output printing is enabled (level 3 or higher)

Solution:
The test actually has all of the data necessary to compute the time it takes to open
and close a file; it just wasn't recording it.  Added 4 new timers:

HDF5_FILE_READ_OPEN
HDF5_FILE_READ_CLOSE
HDF5_FILE_WRITE_OPEN
HDF5_FILE_WRITE_CLOSE

that keep track of the time to open/close a file opened for reading/writing.

Platforms tested:
heping and mir

Misc. update: