This reads directly off of the slices rather than ref'ing and unref'ing
them. There's likely some silliness w.r.t. interned slices and
references to them outliving their associated call objects, but we are
just ignoring that for now.

-) Basic workspace
-) Basic BUILD file with macros

.idea folder is where Project settings are stored with each specific
project as a set of xml files.

Moves all tests into a separate package. This does not change existing
supported means of running tests (e.g. through run_tests.py).

On Mac and Windows, the default directory name conflicts with the BUILD
file we have.

Current latency profiles have their tails dominated by writing latency
logs, which is hugely undesirable.

Now when a thread log fills up, push it to a background thread to write
to disk. At shutdown, wait for all latency traces to be flushed.

It was causing git to ignore everything within src/core

Also updates the version of grpcio_test. Now that grpcio and its tests
are in different project packages, the version numbers should be kept in
sync.

Conditionally runs the tests depending on the availability of Python
versions (because Travis is the worst).

The app doesn’t do anything yet