Previous attempts at ecrypted secret failed due to improperly encoded
file. Local tests revealed that sonatype creds weren't configured
correctly for the defined server. Maven and Gradle snapshots uploaded
locally using updated configs.
* [gradle] Plugin release management
This applies steps necessary for publishing to Sonatype, including
sources, javadoc, jar and signing. Also includes full POM details, per
Sonatype requirements.
* Properties placeholders in gradle plugin (should allow users without these settings to build locally)
* Update build wrapper for install task to be used with new maven plugin, not maven-publish plugin
* Add code signing for gradle and maven