dependency on edgetpu is not stated and is broken even when fulfilled

[ghost]

cp: cannot create regular file './edgetpu/src/cpp/examples/': No such file or directory

it also does not work, cloning https://github.com/google-coral/edgetpu into GPTPU does not result in a valid compilation:

...
ERROR: /home/user/.cache/bazel/_bazel_user/587badfa4d99d8948d03bd66d04f3f20/external/com_google_googletest/BUILD.bazel:57:11: errors encountered resolving select() keys for @com_google_googletest//:gtest
ERROR: Analysis of target '//src/cpp/posenet:models_test' failed; build aborted: 
INFO: Elapsed time: 11.661s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (63 packages loaded, 562 targets configured)
    currently loading: @org_tensorflow//tensorflow
    Fetching repository @crosstool; Restarting.
    Fetching https://storage.googleapis.com/.../protobuf/archive/310ba5ee72661c081129eb878c1bbcec936b20f0.tar.gz
    Fetching https://github.com/bazelbuild/bazel-skylib/releases/download/0.9.0/bazel_skylib-0.9.0.tar.gz
make[1]: *** [Makefile:116: tests] Error 1
make[1]: Leaving directory '/home/user/GPTPU/edgetpu