Moving various application into related methods to a separate class

> This avoids duplicate RPCs when trying to get multiple properties
  from AppInfo
> This would be used in a followup cl when AppInfo is added to caching
  logic in IconCache

Bug: 366237794
Test: atest ApplicationInfoWrapperTest
Flag: EXEMPT refactor
Change-Id: I55b964d4f8cfa1ff1770e310ac278719495e285d