The Lakers’ mission was to take the Rockets’ postseason life away . But the Rockets are still breathing.  And very much alive and confident after beating the Lakers 99-93 on the Lakers homecourt in a pivotal Game 5 to extend the best-of-seven first round playoff series by at least one game.  Even with star guard Austin Reaves making his return to the lineup after being sidelined since April because of a left oblique strain, the Lakers once again struggled offensively for the second consecutive – and 2 ½ games going back to the miraculous Game 3 comeback victory in Houston.  Austin Reaves drives to the basket against the Rockets.…