* Adding a Tools and Builders variant to the DccScriptingInterface gem target to allow it to be used as a gem in the AtomTest project
* Adding support to ly_create_alias to be able to specify an alias with no
dependencies
Updated the SettingsRegistry.cmake generation code to support generating
a Gem target entry in the cmake_dependencies.*.setreg file when an
interface library with no dependencies is parsed
* Fixed generation of Monolithic builds StaticModules.inl
A project's gem module RUNTIME_DEPENDENCIES were not visited to
determine any dependent gem modules that needed to load.
Therefore the CreateStaticModules function were missing
CreateModuleClass_* function calls required initialize the gem's AZ::Module
derived class in monolithic builds
* Removed the logic to strip the Gem:: and Project:: prefix from the Server Launcher gem dependencies
When associating gem dependencies with the server target there was CMake logic left over in it to strip the beginning of the target name if it began with "Gem::" or "Project::"
which are to be seen as sub gem roots as a workaround for detecting the
location of the "gem" root for the Atom/AtomLyIntegration GEM_MODULE targets
Removed the logic in the SettingsRegistry.cmake for reading a
"gem_module_roots" key from the gem.json file in order to determine the
root of the Atom and Atom LyIntegration sub gem modules
cmake_dependencies.<prefix>.<target>.setreg files to detect the nearest
gem module root for a cmake target that has been marked with the
GEM_MODULE property.
The list of gem module roots are made up of the gem.json location + list
of paths in the gem.json "gem_module_roots" JSON array if it exist
Removed the EngineFinder.cmake file from the Engine cmake directory as it is only needed in a Project
Added an EngineJson.cmake which reads the "external_subdirectories" list from the engine.json file and calls add_subdirectory on it
Re-ordered the population of the generated gem dependency list to prepend the dependencies before the dependent targets