Implement various improvements
- Add storage_reader.py for post-processing of ground temperatures
- Add new plotting functions to misc module
- Implement SimStudio class that can create dck files from tpf files
- Implement workaround for small numbers that TRNSYS prints incorrectly
- Add sin(), cos() and tan() to 'find_equations()'
- Clean up deprecation warnings and dependencies
Full Changelog: 0.12.2...0.12.3