fix(@angular/cli): skip searching deprecated packages with ng add

When attempting to add a package via the add command, packages that have been marked as deprecated will no longer be installed when the deprecated package's peer dependencies match the project's dependencies.

(cherry picked from commit 37686b6)

Author: clydin

packages/angular/cli/commands/add-impl.ts

@@ -115,7 +115,7 @@ export class AddCommand extends SchematicCommand<AddCommandSchema> {
       } else if (!latestManifest || (await this.hasMismatchedPeer(latestManifest))) {
         // 'latest' is invalid so search for most recent matching package
         const versionManifests = Object.values(packageMetadata.versions).filter(
-          (value: PackageManifest) => !prerelease(value.version),
+          (value: PackageManifest) => !prerelease(value.version) && !value.deprecated,
         ) as PackageManifest[];
 
         versionManifests.sort((a, b) => rcompare(a.version, b.version, true));