Afatinib Recruiting Phase 1 Trials for Bile Duct Carcinoma / Solid Neoplasms / Advanced Malignant Solid Neoplasm / Stage III Pancreatic Cancer AJCC v6 and v7 / Stage III Pancreatic Cancer / Stage IVB Pancreatic Cancer / Recurrent Malignant Solid Neoplasm / Recurrent Pancreatic Carcinoma / Stage IVA Pancreatic Cancer Treatment