Add Input Manifest for 1.0 maven release. (#307)

Signed-off-by: Marc Handalian <handalm@amazon.com>

bundle-workflow/README.md

@@ -11,6 +11,16 @@ This workflow builds a complete OpenSearch bundle from source. You can currently
 
 ### Build from Source
 
+Each build requires a manifest to be passed as input.  We currently have the following input manifests:
+
+| name        | description                                                                         |
+|-------------|-------------------------------------------------------------------------------------|
+| [opensearch-1.0.0.yml](/manifests/opensearch-1.0.0.yml) |  Manifest to reproduce 1.0.0 build.                 |
+| [opensearch-1.0.0-maven.yml](/manifests/opensearch-1.0.0-maven.yml)|   One-time manifest to build and push maven artifacts for 1.0 from tags. Going forward a separate maven manifest is not required. For 1.0.0 we do not have solid 1.0 refs for all repos nor do we need to rebuild the full bundle.|
+| [opensearch-1.1.0.yml](/manifests/opensearch-1.1.0.yml)| Manifest to build upcoming 1.x release.
+
+
+Usage:
 ```bash
 ./bundle-workflow/build.sh manifests/opensearch-1.1.0.yml --snapshot
 ```

manifests/opensearch-1.0.0-maven.yml

@@ -0,0 +1,15 @@
+---
+schema-version: 1.0
+build:
+  name: OpenSearch
+  version: 1.0.0
+components:
+  - name: OpenSearch
+    repository: https://github.com/opensearch-project/OpenSearch.git
+    ref: 1.0
+  - name: common-utils
+    repository: https://github.com/opensearch-project/common-utils.git
+    ref: 1.0
+  - name: job-scheduler
+    repository: https://github.com/opensearch-project/job-scheduler.git
+    ref: 1.0.0.0