add deepcopy and copy for Param4bit #112

Job	Run time
build-shared-libs-cuda (ubuntu-latest, x86_64, 12.1.0)	2m 34s
build-shared-libs (ubuntu-latest, x86_64)	13s
build-shared-libs-cuda (ubuntu-latest, aarch64, 12.1.0)	10m 51s
build-shared-libs (ubuntu-latest, aarch64)	19s
build-shared-libs-cuda (windows-latest, x86_64, 12.1.0)	15m 37s
build-shared-libs (macos-latest, x86_64)	47s
build-shared-libs (macos-latest, aarch64)	52s
build-shared-libs (windows-latest, x86_64)	55s
build-wheels (ubuntu-latest, 3.9, x86_64)	2m 0s
build-wheels (ubuntu-latest, 3.9, aarch64)	3m 14s
build-wheels (ubuntu-latest, 3.10, x86_64)	1m 50s
build-wheels (ubuntu-latest, 3.10, aarch64)	1m 46s
build-wheels (ubuntu-latest, 3.11, x86_64)	2m 8s
build-wheels (ubuntu-latest, 3.11, aarch64)	1m 50s
build-wheels (ubuntu-latest, 3.12, x86_64)	2m 2s
build-wheels (ubuntu-latest, 3.12, aarch64)	3m 16s
build-wheels (macos-latest, 3.9, x86_64)	1m 24s
build-wheels (macos-latest, 3.9, aarch64)	1m 13s
build-wheels (macos-latest, 3.10, x86_64)	1m 37s
build-wheels (macos-latest, 3.10, aarch64)	1m 33s
build-wheels (macos-latest, 3.11, x86_64)	1m 22s
build-wheels (macos-latest, 3.11, aarch64)	1m 25s
build-wheels (macos-latest, 3.12, x86_64)	1m 17s
build-wheels (macos-latest, 3.12, aarch64)	1m 7s
build-wheels (windows-latest, 3.9, x86_64)	2m 27s
build-wheels (windows-latest, 3.10, x86_64)	3m 11s
build-wheels (windows-latest, 3.11, x86_64)	2m 44s
build-wheels (windows-latest, 3.12, x86_64)	3m 11s
publish	24s
	1h 13m 9s

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