* ATOM-16237 Using setting registry to RPI system settings
Changes include:
- Remove RHISystemDesriptor since the pre-registered draw list tag is not needed.
- Remove EitorContext which was for system component settings.
- Add atom_rpi.setreg file
- Add getting RPISystemDescriptor from setting registry.
Signed-off-by: qingtao <qingtao@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>