Add logging for gesture monitors

We've been ignoring logging for gesture monitors in the past. But
knowing which gesture monitors are receiving touches may help increase
confidence that input is working as intended.

Also, adding the logs about 'pilferPointers' invocation will help
understand which gesture monitor is currently stealing the gesture,
which could help debug some gesture nav issues.

We also remove some of the spammy input logs here. The removed logs have
never been helpful in the past.

Logs: 02-13 00:04:47.255  8243  8358 I input_interaction: Interaction with windows: f9aab6c com.google.latencyTester/com.google.latencyTester.activities.MainActivity (server), edge-swipe (server), swipe-up (server), PointerEventDispatcher0 (server),
02-13 00:05:11.559  8243 12326 I InputDispatcher: Monitor edge-swipe (server) is stealing touch from [f9aab6c com.google.latencyTester/com.google.latencyTester.activities.MainActivity (server), ]
02-13 00:05:11.561  8243  8359 E InputDispatcher: EventId=714770554 total = 3.2 -- eventTime = 22685488444000, readTime = 22685491479371, notify = 22685491650934, enqueue = 22685491671298
02-13 00:05:11.561 16958 16958 I view_enqueue_input_event: [Motion - Cancel,com.google.latencyTester/com.google.latencyTester.activities.MainActivity]
02-13 00:05:11.561  8243  8358 I input_interaction: Interaction with windows: edge-swipe (server), swipe-up (server), PointerEventDispatcher0 (server),

Bug: 176302696
Test: interacted with the device and observed the logs pasted above
Change-Id: I26d51e4fb4022060585211fda3e691a191d9009d