Build and run more Quiche tests in net_unittests

Since test files are manually added to the BUILD.gn file for
Quiche, it's possible that unit tests that would be helpful to
run as part of net_unittests are missed. Assuming it's helpful
to build and run all the unit tests that correspond to source
files that we actually build, I went through these and have
manually added most of them.

The following I think meet the criteria above and we should
add eventually, but either require code/test changes to get
building or have at least one test that fails when run:
 - src/quiche/common/btree_scheduler_test.cc
 - src/quiche/common/print_elements_test.cc
 - src/quiche/common/wire_serialization_test.cc
 - src/quiche/http2/test_tools/hpack_example_test.cc
 - src/quiche/quic/core/deterministic_connection_id_generator_test.cc
 - src/quiche/quic/core/tls_server_handshaker_test.cc
 - src/quiche/quic/core/quic_generic_session_test.cc
 - src/quiche/quic/tools/connect_tunnel_test.cc
 - src/quiche/quic/tools/connect_udp_tunnel_test.cc

To find the paths of tests that we don't build I used:
find net/third_party/quiche/src/ -name "*test.cc" | awk -F '/' '{print $NF}' | xargs -I{} bash -c "grep --silent -L {} net/third_party/quiche/BUILD.gn || echo {}" | xargs -I{} find net/third_party/quiche/src/quiche/ -name "{}"

Bug: 1517338
Change-Id: If04d1570d7149a7c9ac645facc65b849ce985e6d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5182578
Reviewed-by: Victor Vasiliev <vasilvv@chromium.org>
Commit-Queue: Andrew Williams <awillia@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1248105}