uPyxis 2.0

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1. Add manual 4-20mA output for ST-500/ST-588/ST-730/ST-765/ST-710/ST-712
2. Add support for ST-722, ST-730B-SS-WL, HT-500, and the PRL-100 radar level.
3. Fix reading software version error for LT-739 and LT-739B
4. Optimize ST-765SS probe model and range change function
5. Add configurations for coolant PG25 and DI water for ST-730SS-T and ST-731SS-T
6. Add support to set product name and conversion factor for handheld devices with PTSA function
7. Fix some known issues