Tests: Add preliminary IEC-61131 language test, to be continued.
Test sets BEREMIZ_TEST_CYCLES in order to speed-up TON duration test.
<?xml version='1.0' encoding='utf-8'?>
<BeremizRoot xmlns:xsd="http://www.w3.org/2001/XMLSchema" URI_location="LOCAL://">
<TargetType>
<Linux CFLAGS="-DBEREMIZ_TEST_CYCLES=1000"/>
</TargetType>
</BeremizRoot>