Add new "less_than" and "greater_than" parameters to IF tag

In-Portal has <inp2:m_if tag, that allows to display template parts based on a condition, e.g.

<inp2:m_if check="prefix_TagName">
show something
</inp2:m_if>

Text "show something" will be visible only, when tag "TagName" of prefix
"prefix" will return true.

Also, that <inp2:m_if tag has universal parameter called "equals_to", that allows to compare any tag result to given value list (multiple values can be separated using |, e.g. "value1|value2|value3").

Proposed new functionality:

1. add "greater_than" and "less_than" parameters + their processing

2. move that 3 parameters ("greater_than", "less_than" and "equals_to") processing into compiled template code, so we have no to check for their presence during each tag processing.