Add config file for sdk generation pipeline (#20544)

.scripts/automation_generate.sh

@@ -1,2 +1,2 @@
 #!/usr/bin/env bash
-hlc-code-gen-for-pipeline --inputJsonPath=$1 --outputJsonPath=$2 --use=@autorest/typescript@6.0.0-alpha.16.20220105.1
+code-gen-pipeline --inputJsonPath=$1 --outputJsonPath=$2 --use=@autorest/typescript@6.0.0-alpha.16.20220105.1

.scripts/automation_init.sh

@@ -1,6 +1,3 @@
 #!/usr/bin/env bash
-# rush install
 npm install -g @microsoft/rush
-rush install
-# install release tools
 npm install -g @azure-tools/js-sdk-release-tools

eng/codegen_to_sdk_config.json

@@ -0,0 +1,18 @@
+{
+  "init": {
+    "initScript": {
+      "path": ".scripts/automation_init.sh"
+    }
+  },
+  "generateAndBuild": {
+    "generateAndBuildScript": {
+      "path": ".scripts/automation_generate.sh",
+      "stdout": {
+        "storeLogByFilter": "Error: |error |throw|exception"
+      },
+      "stderr": {
+        "storeLogByFilter": "Error: |error |throw|exception"
+      }
+    }
+  }
+}