Added github workflow

Author: synercoder

.github/workflows/dotnet-core.yml

@@ -0,0 +1,93 @@
+name: .NET Core
+on:
+  push:
+    branches:
+      - develop
+  pull_request:
+  release:
+    types:
+      - published
+env:
+  # Stop wasting time caching packages
+  DOTNET_SKIP_FIRST_TIME_EXPERIENCE: true
+  # Disable sending usage data to Microsoft
+  DOTNET_CLI_TELEMETRY_OPTOUT: true
+  # Project name to pack and publish
+  PROJECT_NAME: Synercoding.FileFormats.Pdf
+  # GitHub Packages Feed settings
+  GITHUB_FEED: https://nuget.pkg.github.com/synercoder/index.json
+  GITHUB_USER: synercoder
+  GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+  # Official NuGet Feed settings
+  NUGET_FEED: https://api.nuget.org/v3/index.json
+  NUGET_KEY: ${{ secrets.NUGET_KEY }}
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest, macos-latest ]
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: 3.1.x
+      - name: Restore
+        run: dotnet restore
+      - name: Build
+        run: dotnet build -c Release --no-restore
+      - name: Test
+        run: dotnet test -c Release
+      - name: Pack
+        if: matrix.os == 'ubuntu-latest'
+        run: dotnet pack -v normal -c Release --no-restore --include-symbols --include-source -p:SymbolPackageFormat=snupkg -p:PackageVersion=$GITHUB_RUN_ID src/$PROJECT_NAME/$PROJECT_NAME.*proj
+      - name: Upload Artifact
+        if: matrix.os == 'ubuntu-latest'
+        uses: actions/upload-artifact@v2
+        with:
+          name: nupkg
+          path: ./artifacts/pkg/Release/${{ env.PROJECT_NAME }}.*.nupkg
+  prerelease:
+    needs: build
+    if: github.ref == 'refs/heads/develop'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Download Artifact
+        uses: actions/download-artifact@v1
+        with:
+          name: nupkg
+      - name: Push to GitHub Feed
+        run: |
+          for f in ./nupkg/*.nupkg
+          do
+            curl -vX PUT -u "$GITHUB_USER:$GITHUB_TOKEN" -F package=@$f $GITHUB_FEED
+          done
+  deploy:
+    needs: build
+    if: github.event_name == 'release'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v1
+        with:
+          dotnet-version: 3.1.x
+      - name: Create Release NuGet package
+        run: |
+          arrTag=(${GITHUB_REF//\// })
+          VERSION="${arrTag[2]}"
+          echo Version: $VERSION
+          VERSION="${VERSION//v}"
+          echo Clean Version: $VERSION
+          dotnet pack -v normal -c Release --include-symbols --include-source -p:SymbolPackageFormat=snupkg -p:PackageVersion=$VERSION -o nupkg src/$PROJECT_NAME/$PROJECT_NAME.*proj
+      - name: Push to GitHub Feed
+        run: |
+          for f in ./nupkg/*.nupkg
+          do
+            curl -vX PUT -u "$GITHUB_USER:$GITHUB_TOKEN" -F package=@$f $GITHUB_FEED
+          done
+      - name: Push to NuGet Feed
+        if: ${{ env.NUGET_FEED }} != ''
+        run: dotnet nuget push ./nupkg/*.nupkg --source $NUGET_FEED --skip-duplicate --api-key $NUGET_KEY

Synercoding.FileFormats.Pdf.sln

@@ -31,6 +31,13 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "root", "root", "{6AAE343B-2
 		README.md = README.md
 	EndProjectSection
 EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".github", ".github", "{67FFC819-02FC-4D51-8D02-4588713DE0AB}"
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "workflows", "workflows", "{B1B3DE7C-7961-4FA6-BABD-06B3979D1ABF}"
+	ProjectSection(SolutionItems) = preProject
+		.github\workflows\dotnet-core.yml = .github\workflows\dotnet-core.yml
+	EndProjectSection
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -55,6 +62,8 @@ Global
 		{4FA81463-B64F-40F2-A3F1-226179796E09} = {6AAE343B-2D3D-4F7F-BC6D-6481428BECB2}
 		{E11AEF6A-6977-4D76-83E2-D5BDB84F3872} = {76970674-A4D1-4439-8EA6-8832E4A24FF1}
 		{90A3DC19-7312-4649-8B1E-9455D664C074} = {BE969D07-4BE6-4293-BBC6-C496F7D4A81C}
+		{67FFC819-02FC-4D51-8D02-4588713DE0AB} = {6AAE343B-2D3D-4F7F-BC6D-6481428BECB2}
+		{B1B3DE7C-7961-4FA6-BABD-06B3979D1ABF} = {67FFC819-02FC-4D51-8D02-4588713DE0AB}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {8DB7E905-EFFC-44B7-A5B5-3CC08E3F5AD9}