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
# Beremiz C++ runtime
This project is licensed under the [LPGLv2](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.en.html) license.
## Warning: Work in Progress
**Please note that this project is currently a work in progress.**
## Description
Beremiz C++ runtime. Loads shared object produced by Beremiz but doesn't use python.