Revamped the handling of preloaded plugins by introducing the PreLoadedPlugin mixin. Applied this mixin to DIPlugin, AnalyticsPlugin, and NetworkPlugin to ensure they are initialized before the platform. Removed the static list of preloadedPlugins from VyuhPlatform.

Convert plugin storage mechanism to a cacheable list for better performance. Change abstract class to use getters instead of final fields, and update methods to work with the new plugin handling structure.

This update modifies the addAll method in default_platform.dart to clear the lookup cache whenever new plugins are added. This ensures that the cache remains consistent with the latest set of plugins.

Replaced the PluginType enumeration with a PluginDescriptor class to handle plugin dependency management. Simplified plugin initialization and retrieval logic, and streamlined the code by removing redundant checks for required plugins.