Consolidated duplicate asset browser code from multiple tools into single class in atom tools framework
Moved creation of asset browser and Python terminal windows into base main window class
Fixed docked window orientations
Added checks to asset browser to prevent crashes if tree state saver was null
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>