“Do any human beings ever realize life while they live it — every, every minute?” So implores the newly deceased Emily in the play “Our Town,” written by Thornton Wilder. This entreaty encapsulates this quiet, lovely play that provides a glimpse into the life of the small town of Grover’s Corner, New Hampshire just after the turn of the 20th century, but could be set in Anywhere, U.S.A., in any century. Wilder’s Pulitzer Prize-winning drama, first produced in 1938 and now brought to the Nevada Theatre by Paul Emery, is Wilder’s attempt to illustrate that humans waste opportunities both to …