migrates to github actions

Signed-off-by: Oleh Dokuka <shadowgun@i.ua>

Author: OlegDokuka

.github/workflows/gradle-all.yml

@@ -0,0 +1,26 @@
+name: Branches Java CI
+
+on: [push, pull_request]
+
+jobs:
+  build:
+
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup .NET Core
+        uses: actions/setup-dotnet@v1
+        with:
+            dotnet-version: 2.1.809
+      - name: Install dependencies
+        run: dotnet restore
+      - name: Build
+        run: dotnet build --configuration Release --no-restore
+      - name: Test
+        run: dotnet test --no-restore --verbosity normal

.github/workflows/gradle-release.yml

@@ -0,0 +1,53 @@
+name: Release Java CI
+
+on:
+  # Trigger the workflow on push
+  push:
+    # Sequence of patterns matched against refs/tags
+    tags:
+      - '*' # Push events to matching *, i.e. 1.0, 20.15.10
+
+jobs:
+    publish:
+
+        runs-on: ${{ matrix.os }}
+
+        strategy:
+            matrix:
+                os: [ windows-latest ]
+            fail-fast: false
+
+        steps:
+            - uses: actions/checkout@v2
+            - name: Setup .NET Core
+              uses: actions/setup-dotnet@v1
+              with:
+                  dotnet-version: 2.1.809
+
+            - name: Setup Nuget
+              uses: nuget/setup-nuget@v1
+              with:
+                    nuget-api-key: ${{ secrets.nugetApiKey }}
+                    nuget-version: '5.x'
+            - name: Install dependencies
+              run: dotnet restore
+            - name: Build
+              run: dotnet build --configuration Release --no-restore
+            - name: Test
+              run: dotnet test --no-restore --verbosity normal
+            - name: Package
+              run: dotnet pack -c Release -p:Version=${releaseVersion}
+              env:
+                  releaseVersion: ${{ github.ref }}
+            - name: Restore Cert File
+              run: echo ${codeSigningCer} > code_signing.cer
+              env:
+                  codeSigningCer: ${{ CODE_SIGN_CER }}
+            - name: Sign Package
+              run: nuget sign rsocket-net/RSocket.Core/bin/Release/RSocket.Core.*.nupkg -CertificatePath code_signing.cer
+            - name: Remove Cert File
+              run: rm -rf code_signing.cer
+            - name: publish
+              run: dotnet nuget push rsocket-net/RSocket.Core/bin/Release/RSocket.Core.*.nupkg --api-key ${nugetApiKey} --source https://api.nuget.org/v3/index.json
+              env:
+                  nugetApiKey: ${{ secrets.nugetApiKey }}