dependency resolve with default template and specified output of license

[crholm]

The cli semantic for flags is somewhat cumbersome, unexpected behavior and does not lend it self well for github actions when we want to automatically generate a LICENSE file.

license-eye dependency resolve has the --summary flag which takes a path to a go template file, and emits a LICENCE file in the template dir and only if specified.

The --summary flag thus has three functions, providing a template for rendering, specifying path to output and toggling functionality for outputting a LICENSE file or not.

My suggestion, to keep backwards compatibility, is to add a new flag, --license, which specifies where to write the license file and adding a default template. --summary will retains its behavior for projects depending on it, while allowing a default template and a specific path to be used.

The PR does the following

• adds the flag --license, to the command dependency resolve, which takes a path to where the LICENSE content shall be written
• adds a default template for LICENSE which is used if --license is specified but not --summary
• adds the inputs.flags to github action dependency/action.yml in order to be able to specify flags to generate a LICENSE file through github actions
• updating README with information of the new flag and github action

[kezhenxu94]

Looks good to me, @crholm would you fix the linting errors so the CI can pass?

[crholm]

Linting fixed,

An extra linting error had to be fixed, probably new check in linter
https://github.com/apache/skywalking-eyes/pull/163/files#diff-8a27b8884c79bafd31eba6126f1baf57c0beecc820b372f2aa5fd74b16d1ec05R77

Header exclusion also was added to have make all to work properly
https://github.com/apache/skywalking-eyes/pull/163/files#diff-f8a05717594bf148241760c18447442978fdc9db03a4aae93739529e0c124f8aR74

[kezhenxu94]

Thank you @crholm