feat: [appoptimize] new module for appoptimize #17602

Job	Run time
gitignore_correctness	1m 9s
gapic-bom	1m 40s
owlbot-yaml	1m 1s
generate-readme	1m 12s
group_id_check_for_maps_libraries	7m 37s
owlbot-py	1m 14s
root-pom	1m 46s
package_name_check	1m 0s
	16m 39s

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