Added 1.13.2 code base. Reordered directory structure to combine independent MC version code bases. Rewritten auxilliary build scripts.

1.13/.gitignore

@@ -0,0 +1,35 @@
+bin
+*.launch
+.settings
+.metadata
+.classpath
+.project
+out
+*.ipr
+*.iws
+*.iml
+.idea
+build
+.gradle
+*.tmp
+*.log
+*.jks
+eclipse
+run
+tests
+/dist
+signing.*
+src/main/java/archive
+src/main/resources/assets/minecraft
+.vscode
+/classes
+/dev
+/tmp
+/archive
+/assets-src
+.gimp
+*.xcf
+desktop.ini
+.DS_Store
+Thumbs.db
+forge*changelog.txt