[d3d9] Enable strict float emulation by default on new Nvidia drivers

[K0bin]

Not yet tested.

[Blisto91]

Since my GPU is in the higher end it is a bit hard to get bound in any of the games we already default to Strict where it doesn't also fluctuate, but using the classic test Witcher 2 it is looking fine.

Screenshots

d3d9.floatEmulation = True with 560.35.03

d3d9.floatEmulation = Strict with 560.35.03

d3d9.floatEmulation = Strict with 565.57.01

[Blisto91]

Note that this will introduce #4319 on Nvidia

[doitsujin]

Why do we not already have an app profile for TR Legend if it's literally broken right now?

[Blisto91]

It was just recently discovered that the issue shows when floatEmulation is set to Strict and it haven't been looked at why yet I believe.
I would be careful with just making a config setting it to True without some testing as the game seems sensitive to it in general. The reporter says that disabling invariantPosition also fixes it, but that doesn't seem to be the case on Nvidia from my own testing. Game also had a similar issue in another place in the past before longMad was enabled.

[doitsujin]

In any case I don't see a good reason to stall this PR based on an issue that already affects other GPUs, it needs to be looked at separately.