LPS-45262 Allow LanguageResources to be accessed using ResourceBundle
interface
LPS-45262 Cache bundle instantiation and code reorganization
LPS-45262 get(PageContext) must return proper ResourceBundle
LPS-45262 Remove code duplication
LPS-45262 This should not be needed anymore.

Callers should compose resourceBundles appropriately when calling _get
LPS-45262 SF
LPS-45262 SF
LPS-33427 SF
LPS-33427 SF
LPS-45222 SF
LPS-44232 SF