Better reporting from a check command

[slingerbv]

Now, when someone runs a check command, they get a very long output of the vulnerabilities and projects that the project is related to. However, this should be improved to the following:

A summary

• Your project's code was found in these projects: Project_1, Project_2, etc.
• Your project reuses code from these projects: Project_3, Project_4, etc.
• The license of your project is incompatible with the licenses of these projects: Project_2, Project_4, etc.
• The number of vulnerabilities found in your project: 1
  And then for each heading an explanation. There should be three outputs: one in rich HTML where you can fold (+/-) the heads. One in text, for command line output (summary at the end), and one in simple html for emails (but perhaps the rich html could work there too).

While this issue looks simple, the complexity is in checking the licenses. Please make a proposal for this part.

[slingerbv]

The output depends on the way in which the tool is used. If it's a command line "check" command, you put the summary at the end. If it's used in our email feature, send the rich html as email. Also, the portal code needs to change to output the html version.