Issue #2796173 by tim.plunkett, samuel.mortenson, xjm, jibran, effulgentsia,...

Issue #2796173 by tim.plunkett, samuel.mortenson, xjm, jibran, effulgentsia, dawehner, swentel, tedbow, phenaproxima, larowlan, yoroy, dsnopek, tacituseu, japerry, webchick, amateescu, aspilicious: Add experimental Field Layout module to allow entity view/form modes to switch between layouts