update master to main, github to gitlab

Dockerfile

code.json

gradle/ext.gradle

scripts/docker-config.inc.sh

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

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

src/main/java/gov/usgs/earthquake/nshmp/Hazard2018.java

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

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

src/main/resources/swagger/index.html