patch(-fbc).sh: Add Debian's Tesla driver to search path

Used by:
https://packages.debian.org/bookworm/amd64/libnvidia-encode1/filelist
https://packages.debian.org/bookworm/amd64/libnvidia-tesla-encode1/filelist
https://packages.debian.org/bookworm/amd64/libnvidia-tesla-470-encode1/filelist

Signed-off-by: Jai Luthra <me@jailuthra.in>

win: add driver dch 536.40

linux: add patches for 470.199.02

linux: ensure bytes are valid before patching

We use sed to replace original bytes by patched ones, but unfortunately
sed doesn't report any errors when this substitution fails.

Now, before actually running sed, we check if these bytes that are soon
to be replaced, actually exist in the driver file.

Signed-off-by: Jai Luthra <me@jailuthra.in>

Signed-off-by: Jai Luthra <me@jailuthra.in>

linux: patch for 535.54.03

Signed-off-by: Jai Luthra <me@jailuthra.in>

win: add dch 536.23

win: add dch 535.98

win: add dch driver 532.03

Fixes #642
Signed-off-by: Jai Luthra <me@jailuthra.in>

Signed-off-by: Jai Luthra <me@jailuthra.in>

win: support for dch 531.68

Signed-off-by: Jai Luthra <me@jailuthra.in>

This reverts commit 3f007632.

* win: patch for 531.61

* fix incorrect readme getting committed

Fixes #629
Signed-off-by: Jai Luthra <me@jailuthra.in>

* linux: patch for 525.105.17

* Edited tabs for spaces

win: patch for 531.58 (hotfix)

Add tester scripts

Adds tester scripts to verify patching was completed successfully.