maintenance todos

[hvasbath]

• engine.process deprecated nproc parameter
• limit matplotlib version
• fix seismic data import bug (reported on hive by alepbareto)
• extent physical bounds of ramp and offset in default
• fix duplicate h_ parameters when using SAR and GNSS jointly
• fix multi-event setup
• fix ffi.SeismicGFLibrary.put logger message

[hvasbath]

PR: #151

Merged and released in 2.0.5