Add tests to verify clap command.

Bug: 260823636
Tag: #gd-refactor
Test: atest bluetooth_with_facades.test bt_topshim_facade.test pdl_tests
(cherry picked from https://android-review.googlesource.com/q/commit:0dcbd170a544d514da7f328555217782ac961af6)
Merged-In: Id583d26459c05e3aaa8295c6f752923ec7d8fe93
Change-Id: Id583d26459c05e3aaa8295c6f752923ec7d8fe93