Move NetworkMonitor to NetworkStack

Bug: b/112869080
Test: atest FrameworksNetTests NetworkStackTests
Change-Id: I1b8b6a3f4390adbabf92fb9e48da61c47b08b2ec
8 files changed
tree: 455944a908c2d5f7b39975b4afd2353ed0fe03fe
  1. core/
  2. services/
  3. tests/