Merge branch 'iterables-to-stream' into 'main'

src/main/java/gov/usgs/earthquake/nshmp/Text.java

...ain/java/gov/usgs/earthquake/nshmp/calc/EqRateExport.java

...ain/java/gov/usgs/earthquake/nshmp/calc/HazardExport.java

...v/usgs/earthquake/nshmp/fault/surface/RuptureScaling.java

...a/gov/usgs/earthquake/nshmp/gmm/CoefficientContainer.java

...ava/gov/usgs/earthquake/nshmp/gmm/GroundMotionTables.java

src/main/java/gov/usgs/earthquake/nshmp/gmm/NgaEast.java

...a/gov/usgs/earthquake/nshmp/model/AbstractRuptureSet.java

src/test/java/gov/usgs/earthquake/nshmp/TextTests.java

...v/usgs/earthquake/nshmp/gmm/CoefficientContainerTest.java

src/test/java/gov/usgs/earthquake/nshmp/gmm/GmmTest.java

src/test/java/gov/usgs/earthquake/nshmp/mfd/MfdTests.java

src/test/java/gov/usgs/earthquake/nshmp/mfd/MfdsTests.java