Completed steps up to downloading forge universal jar for 1.8-1.12.

Next step is processing the version.json and transforming it into a deliverable module.

src/resolver/forge/adapter/forge113.resolver.ts

@@ -0,0 +1,27 @@
+import { Module } from '../../../model/spec/module'
+import { ForgeResolver } from '../forge.resolver'
+
+export class Forge113Adapter extends ForgeResolver {
+
+    public static isForVersion(version: string) {
+        return Forge113Adapter.isVersionAcceptable(version, [13, 14, 15])
+    }
+
+    constructor(
+        absoluteRoot: string,
+        relativeRoot: string,
+        minecraftVersion: string,
+        forgeVersion: string
+    ) {
+        super(absoluteRoot, relativeRoot, minecraftVersion, forgeVersion)
+    }
+
+    public async getModule(): Promise<Module> {
+        return null as unknown as Module
+    }
+
+    public isForVersion(version: string): boolean {
+        return Forge113Adapter.isForVersion(version)
+    }
+
+}