* LYN-2537 Updated the AssetBundler code to looks for the AssetSeedList
files within the Assets/Engine directory
Updated the MissingDependencyScanner GetXMLDependenciesFile functions to
use the Assets/Engine directory as well
Also fixed the MissingDependencyScanner to properly located dependency
xml files within gem directories
* Adding back input argument validation for the AssetBundler command options.
Also added an application_options settings registry file that contains the list of valid command options for the ComponentApplication
* Adding missing end of file newline for applications_options.setreg
* Fixed the AssetBundler help output for the bundleSeed command
lumberyard-employee-dm