Migrate dependencies to the Java Library Gradle plugin

[ExE-Boss]

This migrates the dependencies of NOVA-Core to use the Java Library Plugin (see #313).

Something broke the CI :(

[ExE-Boss]

It’s because java-library requires Gradle 3+, but ForgeGradle 1.2 is incompatible with Gradle 4+.

[codecov-io]

Codecov Report

Merging #314 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #314   +/-   ##
=========================================
  Coverage     16.99%   16.99%           
  Complexity      965      965           
=========================================
  Files           416      416           
  Lines         13165    13165           
  Branches       1383     1383           
=========================================
  Hits           2237     2237           
  Misses        10782    10782           
  Partials        146      146

Impacted Files	Coverage Δ	Complexity Δ
src/main/java/nova/core/util/registry/Factory.java	48.14% <ø> (ø)	5 <0> (ø)	⬇️
...rc/main/java/nova/core/component/ComponentMap.java	54.05% <ø> (ø)	10 <0> (ø)	⬇️

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[RX14]

Would be nice if you had time to work on the actual code instead of just mess with gradle :)

[ExE-Boss]

I have been working on the refactor/inventory branch, but that required this, NOVA-Team/NOVA-Gradle#16 and NOVA-Team/NOVA-Gradle#17 to be merged because of the ForgeGradle issues.

[RX14]

Oh cool, nice to know.