Moved settings registry wrapper function to atom tools framework
Created registry settings with default values for preview configurations based on asset type
Changed lighting preset previews and thumbnails to use reflective material
Created registry settings for preset selection dialog borders, padding, sizes
Updated shared preview utility functions to compare against registered asset types instead of passing them in individually
Signed-off-by: Guthrie Adams <guthadam@amazon.com>
* Final update copyright headers to reference license files at the repo root
Signed-off-by: spham <spham@amazon.com>
* Fix copyright validator unit tests to support the stale O3DE header scenario
Signed-off-by: spham <spham@amazon.com>