Added the SECCM scripts

README.md

analysis_sdc.ipynb

analysis_seccm.ipynb

pyproject.toml

src/ec_tools/__init__.py

src/ec_tools/sdc/__init__.py

src/ec_tools/sdc/coords_342.csv

src/ec_tools/sdc/interp.py

src/ec_tools/sdc/loading.py

src/ec_tools/sdc/plotting.py

src/ec_tools/seccm/__init__.py

src/ec_tools/seccm/conversion.csv

src/ec_tools/seccm/coords_342.csv

src/ec_tools/seccm/loading.py

src/ec_tools/seccm/plotting.py