Enable NetworkMetricMonitor and support penalizing networks

This CL integrates the IpSecPacketLossDetector into VCN
route selection. With this change, when a data stall is
reported, the network candidate will be penalized and
then deprioritized during network selection. A network
candidate will stop being penalized until it hitting a timeout
or passing the validation.

Bug: 282996138
Test: atest FrameworksVcnTests(new tests), CtsVcnTestCases
Change-Id: Ifabd6fdea1d5a4fea40cf929dbab7c26d37274ac