Adding binder2corpus to generate fuzzer corpus

Tool will take recording file generated from
record_binder and convert each transaction as seed corpus
for fuzzService.

Usage:
binder2corpus <recording_file> <dest_dir>

Test: m binder2corpus && $ANDROID_HOST_OUT/bin/binder2corpus recordings/manager service_manager_corpus/
Bug: 278975837
Change-Id: If6b2560113b0da1d3458a775a36a677570221fac