[enhancement]: Add count attribute to getHistory

[tops4u]

No existing issues.

• There is no existing issue for my request.

Description

The Count Attribute allows to set the max amount of data to be fetched from a history engine. If unset a value of 500 is used. In JS it is possible to set the count, however when using Blockly it is not.

Please add the "count" Attribute to the Blockly getHistory Element.

Why?

Unable to fetch more (or less) than 500 Elements via Blockly getHistory.

How?

No response

[klein0r]

See #1809