Add Github Workflows (#926)

Author: aadnekar

.github/CODEOWNERS

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+# Require Review from the Wayland team
+* @NordicSemiconductor/wayland

.github/workflows/build.yml

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+
+name: Prepare nRF Connect for Desktop build
+
+on:
+  workflow_call:
+    inputs:
+      runner:
+        required: true
+        type: string # [Windows, macOS, Linux]
+
+jobs:
+  build:
+    runs-on: ["${{ inputs.runner }}"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 18
+          cache: 'npm'
+
+      - name: Install Dependencies
+        run: npm ci
+      - name: Run all checks
+        run: npm run check
+      - name: Run Tests
+        run: npm test
+      - name: Build for Production
+        run: npm run build:prod
+
+      - name: Run Electron Builder (Windows)
+        if: runner.os == 'Windows'
+        run: npx electron-builder -p never --windows nsis:x64
+      - name: Run Electron Builder (macOS)
+        if: runner.os == 'macOS'
+        run: npx electron-builder -p never --x64
+      - name: Run Electron Builder (Linux)
+        if: runner.os == 'Linux'
+        run: npx electron-builder -p never
+
+      - name: Publish built artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: nRF Connect for Desktop
+          path: "release/nrfconnect*"
+          retention-days: 7

.github/workflows/main.yml

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+name: Build nRF Connect for Desktop
+
+on:
+    pull_request:
+        branches:
+            - main
+    push:
+        branches:
+            - main
+
+jobs:
+  build_on_windows:
+    uses: ./.github/workflows/build.yml
+    with:
+      runner: windows-latest
+  build_on_ubuntu:
+    uses: ./.github/workflows/build.yml
+    with:
+      runner: ubuntu-latest
+
+    # build_on_mac_intel:
+    #   uses: ./.github/workflows/build.yml
+    #   with:
+    #       runner: macos-latest
+    # build_on_mac_apple_silicon:
+    #   uses: ./.github/workflows/build.yml
+    #   with:
+    #     runner: macos-latest-xlarge

.github/workflows/release.yml

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+name: GitHub Release of nRF Connect for Desktop
+
+on:
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: 'Tag to be used (e.g. v2.1.3)'
+        required: true
+        type: string
+      prerelease:
+        description: 'Make the release a pre-release'
+        required: true
+        default: true
+        type: boolean
+      draft:
+        description: 'Create draft release'
+        required: true
+        default: true
+        type: boolean
+
+jobs:
+  release:
+    runs-on: ['ubuntu-latest']
+    steps:
+      - name: Create Release
+        uses: ncipollo/[email protected]
+        with:
+            allowUpdates: false
+            artifacts: 'release/*'
+            commit: ${{ inputs.tag }}
+            prerelease: ${{ inputs.prerelease }}
+            draft: ${{ inputs.draft }}
+
+