Perfprofd: Refactor and extend config proto

Move the proto to the base directory. Add messages for general
simpleperf events. Add a script to parse the output of "simpleperf list"
and generate the proto as well as the proto->string code.

Bug: 110555909
Test: mmma system/extras/perfprofd
Test: perfprofd_test
Merged-In: I32017c4ffb5d4ec9d596f2acf8d9e09f7328fe90
Change-Id: I32017c4ffb5d4ec9d596f2acf8d9e09f7328fe90
7 files changed