add Gitea Actions Workflow for both dotnet build and docker

.gitea/workflows/build.yml

@@ -0,0 +1,20 @@
+name: Build
+
+on:
+  push:
+  pull_request:
+
+jobs:
+  build:
+    name: dotnet build
+    runs-on: ubuntu-22.04
+    container:
+      image: mcr.microsoft.com/dotnet/sdk:7.0
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Restore dependencies
+        run: dotnet restore src/DiIiS-NA/Blizzless.csproj
+
+      - name: Build (Release)
+        run: dotnet build src/DiIiS-NA/Blizzless.csproj -c Release --no-restore

.gitea/workflows/docker.yml

@@ -0,0 +1,18 @@
+name: Docker Build
+
+on:
+  push:
+    branches:
+      - main
+      - test-stable
+      - wsl-docker
+
+jobs:
+  docker:
+    name: docker build
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Build Docker image
+        run: docker build -t blizzless-diiis:${{ gitea.sha }} .