Dynamic compilation - auto detect BUILD_LIST based on TARGET

[llxia]

It would be nice if we can auto-detect BUILD_LIST value based on TARGET. It means that BUILD_LIST will be an optional value. Similar to JDK_VERSION. The goal is to further reduce test build running time in Grinder and comment triggered PR builds and to make our test framework more user friendly.

Part 1: clean up cmdlinetest tests that need multiple folders in BUILD_LIST
For example, cmdlinetests need 3 folders:

BUILD_LIST=functional/cmdline_options_tester,functional/cmdline_options_testresources,functional/cmdLineTests/jvmtitests

Part 2: clean up dependencies in rest of functional tests
Part 3: add feature in TKG to generate BUILD_LIST based on BUILD_LIST and target
Part 4: clean up dependencies in other repos

[llxia]

PR eclipse-openj9/openj9#13419 for Part 1.