Modified Shou's affiliation in pom.xml from UnB to GMU/C5I.
Minor updates on API documentation (in HTML).
Changed the name of the API documentation HTML file to the name of the class it documents (to match javadoc standards).
Added javadoc comments and more instrumentations.
Created most of REST methods' signatures (they are stubs yet).
Applying minor SonarQube/SonarLint code cleaning suggestions.
Added initial classes for starting the spring boot application/server.
Renamed package: ubs -> unbbayes.server