Support 'scopingRule' for USING SCOPE clauses

[kevina-code]

It appears the latest release doesn't support the scopingRule query scope. Example:

SELECT Id, Name FROM Account USING SCOPE scopingRule

If that is the case, I'd suggest doing something like this:

var ScopingRule = createToken({
  name: 'ScopingRule',
  pattern: /SCOPINGRULE/i,
  longer_alt: Identifier,
  categories: [UsingScopeEnumeration, Identifier],
  start_chars_hint: ['S', 's']
});
var allTokens = [
  // ...
  ScopingRule,
  // ...
];