Set default values for old deprecated variables. #98

Job	Run time
Build stella in debug mode	1m 19s
Build stella quickly	1m 11s
Automated Fortran tests	6m 50s
build-stella (macos-12, Make)	6m 53s
build-stella (macos-12, CMake)	8m 10s
build-stella (macos-13, Make)	5m 54s
build-stella (macos-13, CMake)	6m 7s
build-stella (macos-14, Make)	3m 29s
build-stella (macos-14, CMake)	3m 5s
build-stella (ubuntu-20.04, Make)	6m 56s
build-stella (ubuntu-20.04, CMake)	5m 32s
build-stella (ubuntu-22.04, Make)	5m 58s
build-stella (ubuntu-22.04, CMake)	3m 53s
build-stella (ubuntu-24.04, Make)	5m 39s
build-stella (ubuntu-24.04, CMake)	3m 54s
Python tests on 1 processor	4m 4s
python-tests (1 - Does stella run )	51s
python-tests (2 - Geometry)	57s
python-tests (3 - Gyrokinetic equation)	55s
python-tests (4 - Flux tube)	1m 13s
python-tests (5 - Diagnostics)	59s
python-tests (6 - Full Flux Surface)	46s
python-tests (7 - Electromagnetic effects)	2m 11s
	1h 26m 46s

Provide feedback