storaged: use AIDL to generate storaged binder calls.

Split binder calls into two separate services.

"storaged" service will be used by external clients, e.g. vold.
- Added stub onUserStarted/onUserStopped to prepare for moving
storaged.proto into ce area.

"storaged_pri" private service will be used by storaged cmdline,
e.g. adb shell storaged -u
- Added parcelable UidInfo for private service.
- Change format of perf history to one vector with first 3 elements
showing size of recent/daily/weekly perf history.

Test: adb shell storaged -u -p
Bug: 63740245
Change-Id: Ib0367282a95b6cb0a38f064f0456e849ecccc210