====== LineAddHeader ======

Function adding information line with header style in the output of view mode.

<code pcmi>
LineAddHeader(Text [, Level])
</code>
|< 100% 15% >|
|**Text**|Header text.|
|**Level**|//Optional.// Header level, can be only 1 or 2. If omitted, 1-st level header will be used.|

Function not return any values.