ClientModeManager: Enable verbose logging on creation

If verbose logging was turned on before ClientModeImpl instance is
created, we need to propagate it through.

Also,
1. Do the same for external scorer (if registered before ClientModeImpl
creation, propagate it on creation). This is kind of duplicated in
ActiveModeWarden -> ClientModeManager as well.
2. Clarify in comments & variable name that the scorer will be in use
for secondary ClientModeManager instances as well (since we decided to
use external scorer in MBB).

Bug: 168041558
Test: atest com.android.server.wifi
Change-Id: I0f9f5667541f13be971f4887c088e467bfaca6a9
3 files changed