Add GitHub Action yaml file to trigger application build steps (#24)

Signed-off-by: Matt Peterson <[email protected]>

Author: mattp-swirldslabs

.github/workflows/build-application.yaml

@@ -0,0 +1,44 @@
+##
+# Copyright (C) 2024 Hedera Hashgraph, LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+##
+
+name: "Build Application"
+on:
+  push
+
+defaults:
+  run:
+    shell: bash
+
+env:
+  GRADLE_EXEC: ./gradlew
+
+jobs:
+  compile:
+    name: "Compilation"
+    runs-on: [ self-hosted, Linux, medium, ephemeral ]
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
+
+      - name: Setup Java
+        uses: actions/setup-java@387ac29b308b003ca37ba93a6cab5eb57c8f5f93 # v4.0.0
+        with:
+          distribution: "temurin"
+          java-version: "21.0.1"
+
+      - name: Compile
+        id: gradle-build
+        run: ${GRADLE_EXEC} build