Near the entrance to “Pipilotti Rist: Big Heartedness, Be My Neighbor,” newly opened at the Museum of Contemporary Art’s Little Tokyo warehouse space, a slew of projected videos accomplishes something rare. Pipilotti Rist, “Digesting Impressions ” 1996/2014, mixed media Nearby, down a dim and curtained corridor, a woman’s spotlighted swimsuit in sunshiny yellow is suspended from the ceiling. Pipilotti Rist, …