Add derivation methods for ZIP 325 private use metadata keys #1604

Job	Run time
check_firebase_secrets	1s
check_emulator_wtf_secrets	1s
validate_gradle_wrapper	6s
static_analysis_detekt	3m 33s
static_analysis_ktlint	5m 24s
demo_app_release_build	23m 4s
check_properties	3m 17s
static_analysis_android_lint	21m 26s
test_android_modules_unit	17m 13s
test_android_modules_ftl	0s
test_android_modules_wtf	21m 56s
test_robo_demo_app	0s
	1h 36m 1s

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