Merge branch 'data-tests' into 'main'

...n/java/gov/usgs/earthquake/nshmp/calc/Disaggregation.java

.../java/gov/usgs/earthquake/nshmp/data/ArrayXySequence.java

src/main/java/gov/usgs/earthquake/nshmp/data/DoubleData.java

src/main/java/gov/usgs/earthquake/nshmp/data/Indexing.java

...ain/java/gov/usgs/earthquake/nshmp/data/Interpolator.java

...in/java/gov/usgs/earthquake/nshmp/data/IntervalArray.java

...ain/java/gov/usgs/earthquake/nshmp/data/IntervalData.java

...in/java/gov/usgs/earthquake/nshmp/data/IntervalTable.java

...n/java/gov/usgs/earthquake/nshmp/data/IntervalVolume.java

src/main/java/gov/usgs/earthquake/nshmp/data/Sequences.java

src/main/java/gov/usgs/earthquake/nshmp/mfd/Mfd.java

...n/java/gov/usgs/earthquake/nshmp/model/GridSourceSet.java

...java/gov/usgs/earthquake/nshmp/model/SystemSourceSet.java

.../java/gov/usgs/earthquake/nshmp/data/DoubleDataTests.java

...st/java/gov/usgs/earthquake/nshmp/data/IndexingTests.java

...java/gov/usgs/earthquake/nshmp/data/InterpolatorTest.java

...ava/gov/usgs/earthquake/nshmp/data/InterpolatorTests.java

...va/gov/usgs/earthquake/nshmp/data/IntervalArrayTests.java

...va/gov/usgs/earthquake/nshmp/data/IntervalTableTests.java

...a/gov/usgs/earthquake/nshmp/data/IntervalVolumeTests.java