Elon Musk and his cousins – Lyndon Rive and Peter Rive – are purchasing $100 million bonds of beleaguered solar panel company SolarCity. Musk, SolarCity’s chairman and primary stakeholder, bought $65 million of bonds, while Lyndon Rive Rive, the company’s CEO, and Chief Technology Officer Peter Rive (Lyndon’s brother) are each acquiring $17.5 million, the company…