SQL:2016 Standard compliant Unicode characters based on https://www.unicode.org/Public/UNIDATA/UnicodeData.txt and its Categories

Merge REPLACE into UPSERT

• Support SQLite REPLACE OR INSERT ...
• Fixes Unable parse OR #1706

DROP TEMPORARY TABLE ...

• Fixes Encountered unexpected token: "temporary" "TEMPORARY" #1712

feat: Configurable backslash \ escaping

• Enables \ as escape character in String Literals (beside SQL:2016 compliant ')

  select 
      case 
      when id_portfolio like '%\_1' escape '\' 
      then '1'
      end

  (which even the GitHub Syntax Highlighter fucks up 👍 )

• Default is OFF (since its not SQL:2016 compliant)

• Activate per Parser Feature

  String sqlStr = "select case \n"
                 + "    when id_portfolio like '%\\_1' escape '\\' then '1'\n"
                 + "    end";
  TestUtils.assertSqlCanBeParsedAndDeparsed(
         sqlStr
         , true
         , parser -> parser.withBackslashEscapeCharacter(false)
  );
  
  Assertions.assertThrows(JSQLParserException.class, new Executable() {
     @Override
     public void execute() throws Throwable {
         CCJSqlParserUtil.parse(
                 sqlStr
                 , parser -> parser.withBackslashEscapeCharacter(true)
         );
     }
  });

• Fixes ESCAPE <expression> must not interpret Escape codes. #1638

• Fixes Error while parsing literals with backslash #1209

• Fixes Lexical error from backslash in string literal #1173

• Fixes <S_CHAR_LITERAL> wrongly matches the chars with ' #1172

• Fixes Fail to parse ESCAPE '\' with two Columns Escaped #832

• Fixes Escaping a backslash in an insert statement #827

• Fixes Parsing issue in LIKE ESCAPE '\' #578

• Fixes JSqlParser cannot recognize \' #875