geodynamics/spatialdata

SWIG 4.0 support

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SWIG 3.0.2 (the current max supported version) is 5 years old now (the latest release is 4.0). Installing this heirloom is an awkward dependency on modern machines. I tried just editing configure.ac and got an error-free build, but haven't been able to test (cf. #8).

See geodynamics/pylith#28 for a description of the problem. Builds with later versions of SWIG proceed, but we have problems with Pyre stuff not working. I spent about a day trying to figure this out, but couldn't out the cause of the problem.