add new unicode separators in lexer.txt

I hope this is the right place to update the lexer

Signed-off-by: Michael Leuschel <leuschel@uni-duesseldorf.de>

src/main/resources/org/sablecc/sablecc/lexer.txt

@@ -151,6 +151,8 @@ public class Lexer implements ITokenListContainer
                     }
                     break;
                 case 13:
+                case 8232: // Unicode line separator
+                case 8233: // Unicode paragraph separator
                     this.line++;
                     this.pos = 0;
                     this.cr = true;