* Added cross project NEG support
* Made neg_configs variable same as in net-lb-app-int
* Added support for cross-project negs in net-lb-app-ext-regional module
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Co-authored-by: Ludovico Magnocavallo <ludomagno@google.com>
Co-authored-by: Ludovico Magnocavallo <ludo@qix.it>
Co-authored-by: Julio Castillo <juliocc@gmail.com>
Co-authored-by: Wiktor Niesiobędzki <wiktorn@google.com>