chore(CI): add pull request workflow

.github/workflows/pull-request.yml

@@ -0,0 +1,47 @@
+name: Item Tracker CI
+
+on:
+  pull_request:
+    branches: [ master ]
+
+env:
+  Project_Name: MHWItemBoxTracker
+  configuration: Debug
+
+defaults:
+  run:
+    shell: bash
+
+  build:
+    runs-on: windows-latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Install .NET Core
+      uses: actions/setup-dotnet@v1
+      with:
+        dotnet-version: 5.0.x
+
+    - name: Setup MSBuild.exe
+      uses: microsoft/setup-msbuild@v1.0.2
+
+    # Restore the application to populate the obj folder with RuntimeIdentifiers
+    - name: Restore the applications
+      env:
+        NUGET_USERNAME: ${{ github.repository_owner }}
+        NUGET_PASSWORD: ${{ secrets.GITHUB_TOKEN }}
+      shell: pwsh
+      run: |
+        cp .github/NuGet.Config .
+        msbuild -m /t:Restore
+
+    - name: Execute unit tests
+      run: dotnet test
+
+    # if I had tests, I probably wouldn't need to build...
+    - name: Build the apps
+      shell: pwsh
+      run: |
+        msbuild -m /p:"Configuration=$env:configuration,AssemblyVersionNumber=0.0.0.0"