Allow to omit .files[].name if .files[].src is set

[suzuki-shunsuke]

Feature Overview

Allow to omit .files[].name if .files[].src is set.
If .files[].src is set, the default value of .files[].name is filepath.Base(.Src)

Why is the feature needed?

To simplify.

Does the feature include Breaking Changes?

No.

Example Code

AS IS

files:
  - name: binaryen-unittests
    src: binaryen-{{.Version}}/bin/binaryen-unittests

TO BE

files:
  - src: binaryen-{{.Version}}/bin/binaryen-unittests

Reference