Make DVDLowOpenPartition actually change partitions.
DiskIO: Clean up GetTMD() API.
ISOProperties: show all paritions on property page.
Works around broken Intel Windows video drivers.

Just use regular boolean negation in our pixel shader's depth test everywhere except on Qualcomm.
This works around a bug in the Intel Windows driver where comparing a boolean value against true or false fails but boolean negation works fine.
Quite silly.

Should fix issues #7830 and #7899.
Merge pull request #1642 from Sonicadvance1/fix_intel_windows_crap

Works around broken Intel Windows video drivers.
DiscIO: Safety check when allocating memory for TMD
Merge pull request #1618 from JosJuice/dvd-low-open-partition

Fix Wii disc partitions