A Verizon executive claimed the company has been getting threats over alleged race discrimination from Byron Allen — the litigious media mogul who owns the Weather Channel, The Post has learned.Allen — who just last month won a settlement in his $10 billion racial discrimination lawsuit against McDonald’s — has threatened a similar suit against the telecom giant after it backed away from a $15 million yearly advertising pact with his TV networks, sources said.The 64-year-old comedian-turned-media executive ...