check: implement `check.HTTPCookie`

[GregoryAlbouy]

Todo

• Generate interface check.HTTPCookieChecker
• Implement check.HTTPCookieCheckerProvider with the following methods (WIP suggestions):

  type  HTTPCookieCheckerProvider interface {
      Value(c StringChecker) HTTPCookieCheckerProvider
      HTTPOnly(is bool) HTTPCookieCheckerProvider
      Secure(is bool) HTTPCookieCheckerProvider
      MaxAge(c IntChecker) HTTPCookieCheckerProvider
      Domain(c StringChecker) HTTPCookieCheckerProvider
      Expires(c TimeChecker) HTTPCookieCheckerProvider // note: TimeChecker might not be implemented yet
  }

• Write unit tests for check.HTTPCookieCheckerProvider
• Implement new methods for checkers:
  • check.HTTPRequestCheckerProvider.Cookie(name string, c check.HTTPCookieChecker)
  • check.HTTPResponseCheckerProvider.Cookie(name string, c check.HTTPCookieChecker)
  • Write unit tests for these methods

Blocked by

• check: implement check.Time #88