The Sweet Auburn district of Atlanta, Georgia is well-known because of one very important figure, it&#x27;s where civil rights activist Martin Luther King, Jr. grew up. A few days ago, street artist JR flew into Atlanta, and made his way to the Auburn area to start prepping its walls for something monumental. This month will mark the 50th anniversary of Martin Luther King, Jr.&#x27;s famous speech, &quot;I Have a Dream.&quot; Created as a call to end racism in America, the powerful speech was delivered on…