ft_watcher: make fast_transfer a submodule for easy sync

Signed-off-by: bingyuyap <bingyu.yap.21@gmail.com>

Author: bingyuyap

.github/workflows/build.yaml

@@ -3,12 +3,18 @@ on:
   push:
     branches:
       - main
+      - bing/fast-transfer-submodule
+
 jobs:
   build-and-deploy:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout 🛎️
         uses: actions/checkout@v3
+        with:
+          submodules: recursive  # Initialize submodules recursively
+      - name: Update Submodules
+        run: git submodule update --init --recursive
       - uses: actions/setup-node@v3
         with:
           node-version: 16

.gitmodules

@@ -0,0 +1,3 @@
+[submodule "watcher/sdk/example-liquidity-layer"]
+	path = watcher/sdk/example-liquidity-layer
+	url = https://github.com/wormhole-foundation/example-liquidity-layer