Does love make the world go round?  Is there such a thing as a random encounter?  In 1897, Viennese playwright Arthur Schnitzler asked these questions in Reigen (Round Dance). which in turn was questioned by censors.  Yet what was considered pornographic in 1897 is now rather tame - but still audacious - as translator/director H. Clark Kee shows in The Round Dance at the IRT Theatre. Schnitzler's plot device is deceptively simple as he reveals the complexities of emotional and physical love in one act and several scenes.  A Hooker (Ruth Guimera) turns tricks with a Soldier (J.P. Stewart).  He then puts the