Add missing organization
Add missing license configuration

Most Fiji components use the GPLv3 license, so let's declare that
license by default. Components with diverging licenses can override
the configuration to specify something else.
Fix Jenkins URL
Add back missing projects

They are each declared at a not-yet-released version, so that they
can be subsequently released based on a matching version of pom-fiji.

Regarding ImgLib1: the consensus is keep ImgLib1 (and hence
downstream projects like TrakEM2) in core Fiji, at least for now.

See this thread for details:
https://groups.google.com/d/topic/fiji-devel/KObyQZ0R_1Q/discussion
Override inherited developers and contributors

Each Fiji project will need to specify its own. But regardless, let's
not inherit the ImageJ organization's developers and contributors here.
Tidy up order of configuration blocks

Accomplished using:
    mvn tidy:pom