Punctuation symbols for Morse code

src/js/operations/MorseCode.js

@@ -65,6 +65,24 @@ var MorseCode = {
         "8": "<dash><dash><dash><dot><dot>",
         "9": "<dash><dash><dash><dash><dot>",
         "0": "<dash><dash><dash><dash><dash>",
+        ".": "<dot><dash><dot><dash><dot><dash>",
+        ",": "<dash><dash><dot><dot><dash><dash>",
+        ":": "<dash><dash><dash><dot><dot><dot>",
+        ";": "<dash><dot><dash><dot><dash><dot>",
+        "!": "<dash><dot><dash><dot><dash><dash>",
+        "?": "<dot><dot><dash><dash><dot><dot>",
+        "'": "<dot><dash><dash><dash><dash><dot>",
+        "\"": "<dot><dash><dot><dot><dash><dot>",
+        "/": "<dash><dot><dot><dash><dot>",
+        "-": "<dash><dot><dot><dot><dot><dash>",
+        "+": "<dot><dash><dot><dash><dot>",
+        "(": "<dash><dot><dash><dash><dot>",
+        ")": "<dash><dot><dash><dash><dot><dash>",
+        "@": "<dot><dash><dash><dot><dash><dot>",
+        "=": "<dash><dot><dot><dot><dash>",
+        "&": "<dot><dash><dot><dot><dot>",
+        "_": "<dot><dot><dash><dash><dot><dash>",
+        "$": "<dot><dot><dot><dash><dot><dot><dash>"
     },