update config files to ignore node_modules for tsc and eslint

Author: joeluong-sfcc

.eslintignore

@@ -1,2 +1,3 @@
 renderedTemplates
 dist/**/*.ts
+node_modules

base.tsconfig.json

@@ -16,6 +16,7 @@
         "noErrorTruncation": true,
         "noImplicitReturns": true,
         "noImplicitThis": true,
-        "preserveConstEnums": true
+        "preserveConstEnums": true,
+        "skipLibCheck": true
     }
 }