[ARCHETYPE-548] Resource files without extension missing in create-from-project

[Harry-Pootha]

• Fixes resource files without extension not being included in mvn archetype:create-from-project
• Added integration test for resource file without extension

In ARCHETYPE-548 and ARCHETYPE-499 it is described how archetypes generated with mvn archetype:create-from-project do not include resource files without file extensions. We ran into the same issue with Dockerfile, as did others.

This PR generates a <include> (e.g. **/Dockerfile) for files without extension. In addition the <include>**/*.</include>, which was added in case of an empty extension has been removed for this case.

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[jira-importer]

Resolve #860

[jira-importer]

Resolve #860