Exclude third-party code from codebeat (#1379)

* #1240 Update license declaration of each files
Signed-off-by: Njinhai <hai.jin@zilliz.com>

* #1240 Update CHANGELOG
Signed-off-by: Njinhai <hai.jin@zilliz.com>

* change file name to uppercase
Signed-off-by: Njinhai <hai.jin@zilliz.com>

* #1327 Exclude third-party code from codebeat
Signed-off-by: NJinHai-CN <hai.jin@zilliz.com>

* #1327 Exclude third-party code from codebeat
Signed-off-by: NJinHai-CN <hai.jin@zilliz.com>

.codebeatignore

+core/src/index/thirdparty/*
+sdk/build-support/*
+core/build-support/*

CHANGELOG.md

@@ -57,6 +57,7 @@ Please mark all change in change log and use the issue from GitHub
 - \#1320 - Remove debug logging from faiss
 
 ## Task
+- \#1327 - Exclude third-party code from codebeat
 
 # Milvus 0.6.0 (2019-12-07)
 

DESIGN.md

+# Milvus Design Documents
+
+If you would like to propose a new feature for Milvus, it is recommended that you submit a design document following the [design document template](https://docs.google.com/document/d/1KhWs9b53K6WQUZ_FGWhIaeTraaSqsLQF7v2v68sAh_c/edit?usp=sharing).
+
+The following list contains existing design documents for Milvus.
+
+- [Support DSL interface](https://docs.google.com/document/d/1U83LY36TyaG3WD67Q9HWg9saD3qQcz9BfMcEScgwQPM/edit?usp=sharing)
+- [Support delete/search by ID, attribute filtering, ID de-duplication](https://docs.google.com/document/d/1CDKdTj_DnE90YaZrPgsMaphqOTkMdbKETNrsFKj_Bco/edit?usp=sharing)
+- [Support write-ahead logging](https://docs.google.com/document/d/12N8RC_wJb2dvEKY9jrlh8hU_eH8jxQVBewoPuHNqcXE/edit?usp=sharing)