Some before-suspend graphic tests should be tested after suspend as well

[Po-Hsu Lin]

For those automatic / user-interact-verify tests like:
graphics/1_glxgears_.*
graphics/1_driver_version_.*
graphics/1_compiz_check_.*
graphics/1_display_.*

Should be tested after suspend as well. (In 14.04 and dev test plan, also the 14.04.3 test plan)

For the driver version test, it will make better sense to make it compare with the driver version before suspend.

And for the display test, the name will collide with the "display_after_suspend" manual test (which will ask you to verify if the display is working properly), I will file another bug to track this.

I think we don't need the graphics/1_maximum_resolution_.* test, since we will check the resolution consistency before and after suspend.

Please feel free to add the one that you think should be added here.