Allow the Launcher to detect ans run exploded (unpacked) jar/war files.
This change is primarily driven by the fact that Cloud Foundry will
unpack uploaded files.
Issue: #53066255
Develop a maven plugin that can be used to package executable jar/war
archives. The plugin is intended to be used as a drop-in replacement
for the standard maven-jar-plugin. To use the plugin declare it with
<extensions>true</extensions> then set the project type to
'executable-jar' or 'executable-war'.
Configuration options for 'executable-war' generation are intentionally
much more limited then the standard maven-war-plugin (for example
overlays are not supported). It is anticipated that builds requiring
complex configuration will continue to use the standard plugin in
combination with a custom assembly.
Issue: #52091115
Phillip Webb
Dave Syer