SVGHMI: add support of all IEC61131 interger types.

- add HMI_*INT types
- fix sprintf.js with big int (64b)
- extend svghmi_real test project

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<?xml version='1.0' encoding='utf-8'?>

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<BaseParams xmlns:xsd="http://www.w3.org/2001/XMLSchema" IEC_Channel="0" Name="svghmi_0"/>