beremiz

6337c9c2c379
MQTT: add JSON payload corresponding to IEC Structured types

- uses https://github.com/cesanta/frozen
- frozen.c is added as a resulting c file in generat_C (fix toolchain_gcc.py as it was breaking dependency checking)
- structured types are converted to C #define, in turn generating json_scanf and json_printf statements
<?xml version='1.0' encoding='utf-8'?>
<PyFile xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<variables/>
<globals>
<xhtml:p><![CDATA[
import sys
def pfunc(arg):
sys.stdout.write(arg)
sys.stdout.flush()
pfunc("globals section\n")
]]></xhtml:p>
</globals>
<init>
<xhtml:p><![CDATA[
pfunc("init section\n")
]]></xhtml:p>
</init>
<cleanup>
<xhtml:p><![CDATA[
pfunc("cleanup section\n")
]]></xhtml:p>
</cleanup>
<start>
<xhtml:p><![CDATA[
pfunc("start section\n")
]]></xhtml:p>
</start>
<stop>
<xhtml:p><![CDATA[
pfunc("stop section\n")
]]></xhtml:p>
</stop>
</PyFile>