Use schema information to elide autonames

[pgavlin]

If --filter-auto-names is specified on the command line, filter
values for properties that are marked as autogenerated names from
the generated code.

[pgavlin]

The diff I posted earlier was not accurate due to a friendly bug I left in pulumi-terraform. Here's an example of an actual diff:

diff --git a/sdk/nodejs/athena/database.ts b/sdk/nodejs/athena/database.ts
index f91c5d2..8933c9e 100644
--- a/sdk/nodejs/athena/database.ts
+++ b/sdk/nodejs/athena/database.ts
@@ -13,11 +13,10 @@ import * as utilities from "../utilities";
  * import * as pulumi from "@pulumi/pulumi";
  * import * as aws from "@pulumi/aws";
  *
- * const hogeBucket = new aws.s3.Bucket("hoge", {
- *     bucket: "hoge",
- * });
+ * const hogeBucket = new aws.s3.Bucket("hoge", {});
  * const hogeDatabase = new aws.athena.Database("hoge", {
  *     bucket: hogeBucket.bucket,
+ *     name: "database_name",
  * });
  * ```
  */

This diff features both a previously-undetected auto-name property being elided and a previously-erroneously-elided property being restored.

[swgillespie]

LGTM