[WIP] Add CPU QuadratureSHAP prototype alongside TreeSHAP #15064

Job	Run time
Build libxgboost4j.dylib for MacOS (Intel)	2m 17s
Configure variables for CI	10s
Build libxgboost4j.so targeting glibc 2.17 (arch x86_64, runner linux-amd64-cpu)	2m 11s
Build and test JVM packages (macos-15-intel)	14m 40s
Build libxgboost4j.so targeting glibc 2.17 (arch aarch64, runner linux-arm64-cpu)	2m 25s
Build and test JVM packages (windows-latest)	8m 31s
Build libxgboost4j.dylib for MacOS (Apple Silicon)	1m 54s
Build and test JVM packages (Linux, Scala 2.13)	5m 8s
Build libxgboost4j.so with CUDA	7m 52s
Build and test JVM packages (Linux, Scala 2.12)	10m 11s
Test JVM packages with CUDA (Scala 2.13)	8m 7s
Test JVM packages with CUDA (Scala 2.12)	8m 10s
Deploy JVM packages to S3 (cpu, Scala 2.13)	56s
Deploy JVM packages to S3 (gpu, Scala 2.13)	2m 53s
Deploy JVM packages to S3 (cpu, Scala 2.12)	53s
Deploy JVM packages to S3 (gpu, Scala 2.12)	2m 58s
	1h 19m 16s

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