Added REST endpoint for packaging + fixes

[stefanbschneider]

for sdk portal: sonata-nfv/tng-portal#379

[stefanbschneider]

@mpeuster The failure seems to be a packager unit test. Do you have an idea what's the issue? I don't really get the error output.

=================================== FAILURES ===================================

________________ TngSdkPackageRestTest.test_project_v1_endpoint ________________


self = <tngsdk.package.tests.test_unit_rest.TngSdkPackageRestTest testMethod=test_project_v1_endpoint>


    def test_project_v1_endpoint(self):

        # do a malformed post

        r = self.app.post("/api/v1/projects",

                          content_type="multipart/form-data",

                          data={"project": (None,

                                            "5gtango-ns-project-example.zip"),

                                "callback_url": "https://test.local:8000/cb",

>                               "skip_store": True})


src/tngsdk/package/tests/test_unit_rest.py:141: 

....

[stefanbschneider]

TODO: Restart once this PR is merged: sonata-nfv/tng-sdk-package#187

[stefanbschneider]

Todo:

• Replace GET with POST
• Make skip-validation optional param rather than hard-coding (could put a checkbox to the portal)