ExifInterface: Refactor custom input stream class

ExifInterface uses a class named ByteOrderAwarenessDataInputStream
to handle LITTLE_ENDIAN byte-ordered data. This class can only be
initialized with a byte array, which is inefficient for large RAW
files. This CL adds support for initializing with an input stream.

Bug: 30749097
Change-Id: I4e95fb2157115c571ed24ec3746a3c6db752bbdc