Add Dockerfile and docs for building Cloudberry Docker Images #643

Job	Run time
check-skip	4s
Build Apache Cloudberry DEB	15m 18s
prepare-test-matrix-deb	4s
DEB Install Test Apache Cloudberry	2m 24s
pax-ic-deb-good-opt-on	27m 24s
ic-deb-good-opt-on	30m 39s
ic-deb-contrib	4m 28s
ic-deb-gpcontrib	4m 47s
ic-deb-good-opt-off	26m 19s
pax-ic-deb-good-opt-off	23m 2s
ic-cbdb-parallel	28m 41s
Generate Apache Cloudberry Build Report	2s
	2h 43m 12s

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