add actions with paperweight build for now

.github/workflows/build.yml

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+name: Patch and Build
+
+on:
+  push:
+    branches: [ "**" ]
+  pull_request:
+
+jobs:
+  build:
+    # Only run on PRs if the source branch is on someone else's repo
+    if: ${{ github.event_name != 'pull_request' || github.repository != github.event.pull_request.head.repo.full_name }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Git Repository
+        uses: actions/checkout@v4
+      - name: Set up JDK
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '21'
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v4
+      - name: Configure Git User Details
+        run: git config --global user.email "[email protected]" && git config --global user.name "Github Actions"
+      - name: build paperweight
+        run: ./build_paperweight.sh
+      - name: Apply Patches
+        run: ./gradlew applyAllPatches --stacktrace
+      - name: Build
+        run: ./gradlew build

.gitmodules

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+[submodule "paperweight"]
+	path = paperweight
+	url = https://github.com/PaperMC/paperweight.git

build_paperweight.sh

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+#!/bin/bash
+set -eou pipefail
+git submodule update --init --recursive
+cd paperweight
+./gradlew pTML