Add a support a method batch in base class

[mesilov]

http://dev.1c-bitrix.ru/rest_help/general/batch.php

[drumrock]

This can be implemented as 3 methods and delayed execution:

//Start batch block
$obApp->batchStart();
//API-calls to be packed into batch
$obLead->getList();
$obLead->get();
...
//Batch end
$obApp->batchEnd();
//Run batch
$obApp->batchExecute();

Every method called for the same $obApp between $obApp->batchStart()
and $obApp->batchEnd() has to be stored in some cache ($batch[] = methodName+paramsArray),
but not executed immediately. And then all these stored methods
have to be executed on $obApp->batchExecute();

Programming effort here can be minimized by changing Bitrix24::call()
to support delayed API-calls execution.

All other methods can be left untouched.

[maranqz]

Will it be implemented in the near future?