Discussion: `tf_module` to require explicitly provided srcs/data

[wingsofovnia]

Currently, the following definition is valid:

tf_module(
    name = "my-module",
)

since tf_module macro signature has data defaulting to []. However, this is not the effective default as :srcs is native.glob(["**/*"], exclude=bzl_files) + data. This is imho confusing.

I suggest requiring srcs in macro explicitly and not using native.glob(["**/*"], exclude=bzl_files) at all. What do you think?