Wearing zoot suits and skirts that twirl, Lindy Hoppers are making lots of whoopee from coast to coast Dance studios that once offered a few classes now find that they are packing in the crowds and swing dancing is the reason why. The dancers, many in their 20s, are spinning mooching and trucking with varying degrees of skill to the syncopated jump blues of Big Joe Turner and Louis Jordan. Swing dancing is enjoying a loud and rambunctious revival in nightclubs, ballrooms and dance studios. The music is raucous and high-decibel, and so are the crowds. At gyms and ballrooms, dancers too young to remember Tommy Dorsey, or even Talking…