Add simple build pipeline (#3)

Added a very simple build pipeline to validate if project at a whole
builds and as preparation for later unit test execution.

Author: HaGGi13

.github/workflows/build-connyconsole.yaml

@@ -0,0 +1,31 @@
+name: Build ConnyConsole
+
+on:
+  push:
+    branches:    
+    - "develop"
+    - "master"
+  pull_request:
+    branches: 
+    - "develop"
+    - "master"
+  workflow_dispatch:
+
+env:
+  solutionPath: './src/ConnyConsole.sln'
+
+jobs:
+  build:
+
+    runs-on: windows-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    - name: Setup .NET
+      uses: actions/setup-dotnet@v4
+      with:
+        dotnet-version: 9.0.x
+    - name: Restore dependencies
+      run: dotnet restore ${{ env.solutionPath }}
+    - name: Build
+      run: dotnet build --no-restore ${{ env.solutionPath }}