Mega-merge 4: Reenable LndWallet gRPC and use TrackPaymentV2 (#745)

* readd lndgrpc

* debug logging

* Use TrackPaymentV2

* /v2/router/track

* lnd_router_grpc

* flag for blocking check

* error handling

* fix name

* regtest lndgrpc

* new test pipeline

* fix env

* check for description hash

* remove unnecessary asserts for clarity

* assume that description_hash is a hash already

* no lock

* description hashing in backend

* restore bolt11.py

* /api/v1/payments with hex of description

* comment

* refactor wallets

* forgot eclair

* fix lnpay

* bytes directly

* make format

* mypy check

* make format

* remove old code

* WIP status check

* LND GRPC docs

* restore cln to main

* fix regtest

* import

* remove unused import

* format

* do not expect ok

* check ok

* delete comments

.github/workflows/regtest.yml

@@ -40,7 +40,47 @@ jobs:
       - name: Upload coverage to Codecov
         uses: codecov/codecov-action@v3
         with:
-          file: ./coverage.xml
+          file: ./coverage.xml            
+  LndWallet:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: [3.8]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - uses: abatilo/actions-poetry@v2.1.3
+      - name: Setup Regtest
+        run: |
+          git clone https://github.com/lnbits/legend-regtest-enviroment.git docker
+          cd docker
+          chmod +x ./tests
+          ./tests
+          sudo chmod -R a+rwx .
+      - name: Install dependencies
+        run: |
+          poetry install
+          poetry add grpcio protobuf
+      - name: Run tests
+        env:
+          PYTHONUNBUFFERED: 1
+          PORT: 5123
+          LNBITS_DATA_FOLDER: ./data
+          LNBITS_BACKEND_WALLET_CLASS: LndWallet
+          LND_GRPC_ENDPOINT: localhost
+          LND_GRPC_PORT: 10009
+          LND_GRPC_CERT: docker/data/lnd-1/tls.cert
+          LND_GRPC_MACAROON: docker/data/lnd-1/data/chain/bitcoin/regtest/admin.macaroon
+        run: |
+          sudo chmod -R a+rwx . && rm -rf ./data && mkdir -p ./data
+          make test-real-wallet          
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          file: ./coverage.xml          
   CoreLightningWallet:
     runs-on: ubuntu-latest
     strategy: