Update .gitignore and .prettierignore; add generated Swagger API libraries

generated/swagger/availability-api/tsconfig.lib.json

@@ -0,0 +1,12 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "outDir": "../../../dist/out-tsc",
+    "declaration": true,
+    "declarationMap": true,
+    "inlineSources": true,
+    "types": []
+  },
+  "exclude": ["src/**/*.spec.ts", "jest.config.ts", "src/**/*.test.ts"],
+  "include": ["src/**/*.ts"]
+}