Fix return of wrong pattern piece

The getPatternIncluding method would return quoted pieces if
the check contents of the quoted part included the format letter.

For instance for Danish (da_DK), the pattern is "EEE 'den' d. MMM"
If we are calling `getPatternIncluding("d", "da_DK")`, the method
would return `"den'"´, but we would like to return `"d."`.

This commit ignores pieces with apostrophe ("'") in them.

android/src/main/java/com/henninghall/date_picker/LocaleUtils.java

@@ -17,7 +17,7 @@ public class LocaleUtils {
     */
     public static String getPatternIncluding(String format, Locale locale) {
         for (String piece: getFullPatternPieces(locale)){
-            if(piece.contains(format)) {
+            if(piece.contains(format) && !piece.contains("'")) {
                 return piece;
             }
         }
@@ -50,5 +50,3 @@ public class LocaleUtils {
     }
 
 }
-
-