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

1.13/build.gradle

@@ -0,0 +1,79 @@
+// @file build.gradle
+// Engineer's decor mod gradle build relay (mc1.13.2)
+buildscript {
+  repositories {
+    maven { url = 'https://files.minecraftforge.net/maven' }
+    jcenter()
+    mavenCentral()
+  }
+  dependencies {
+    classpath group: 'net.minecraftforge.gradle', name: 'ForgeGradle', version: '3.+', changing: true
+  }
+}
+apply plugin: 'net.minecraftforge.gradle'
+apply plugin: 'eclipse'
+sourceCompatibility = targetCompatibility = compileJava.sourceCompatibility = compileJava.targetCompatibility = '1.8'
+//-----------------------------------------------------------------------------
+version = "${version_engineersdecor}"
+group = "wile.engineersdecor"
+archivesBaseName = "engineersdecor-${version_minecraft}"
+
+// def signing = { ->
+//   def sp = new Properties()
+//   if(file("signing.properties").exists()) file("signing.properties").withInputStream { sp.load(it) }
+//   return sp
+// }()
+
+// def git_version = { ->
+//   def stdout = new ByteArrayOutputStream()
+//   exec {
+//     commandLine 'git', 'log', '-1', '--format=%h'
+//     standardOutput = stdout
+//   }
+//   return stdout.toString().trim()
+// }()
+
+minecraft {
+  mappings channel: 'snapshot', version: '20180921-1.13'
+  // accessTransformer = file('build/resources/main/META-INF/accesstransformer.cfg')
+  runs {
+    client {
+      workingDirectory project.file('run')
+      property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'
+      property 'forge.logging.console.level', 'debug'
+      mods {
+        engineersdecor {
+          source sourceSets.main
+        }
+      }
+    }
+    server {
+      workingDirectory project.file('run')
+      property 'forge.logging.markers', 'SCAN,REGISTRIES,REGISTRYDUMP'
+      property 'forge.logging.console.level', 'debug'
+      mods {
+        engineersdecor {
+          source sourceSets.main
+        }
+      }
+    }
+  }
+}
+
+dependencies {
+  minecraft "net.minecraftforge:forge:${version_forge_minecraft}"
+}
+
+jar {
+  manifest {
+    attributes([
+      "Specification-Title": "engineersdecor",
+      "Specification-Vendor": "wilechaote",
+      "Specification-Version": "1", // We are version 1 of ourselves
+      "Implementation-Title": project.name,
+      "Implementation-Version": "${version_engineersdecor}",
+      "Implementation-Vendor" :"wilechaote",
+      "Implementation-Timestamp": new Date().format("yyyy-MM-dd'T'HH:mm:ssZ")
+    ])
+  }
+}