Add mailmap to consolidate author identities and correctly count contributions (#3905)

Co-authored-by: Yvonne Fröhlich <[email protected]>
Co-authored-by: Wei Ji <[email protected]>

Author: 3 people

.mailmap

@@ -0,0 +1,19 @@
+Dongdong Tian <[email protected]>
+Dongdong Tian <[email protected]> <[email protected]>
+Jiayuan Yao <[email protected]>
+Jiayuan Yao <[email protected]> <[email protected]>
+Jing-Hui Tong <[email protected]>
+Jing-Hui Tong <[email protected]> <[email protected]>
+Max Jones <[email protected]>
+Max Jones <[email protected]> <[email protected]>
+Max Jones <[email protected]> <[email protected]>
+Max Jones <[email protected]> <[email protected]>
+Michael Grund <[email protected]> <[email protected]>
+Michael Grund <[email protected]> <[email protected]>
+Michael Grund <[email protected]> <[email protected]>
+Wei Ji Leong <[email protected]>
+Wei Ji Leong <[email protected]> <[email protected]>
+Wei Ji Leong <[email protected]> <[email protected]>
+Will Schlitzer <[email protected]> <[email protected]>
+Yvonne Fröhlich <[email protected]> <[email protected]>
+Yvonne Fröhlich <[email protected]> <[email protected]>

MANIFEST.in

@@ -8,6 +8,7 @@ exclude .dvcignore
 exclude .gitignore
 exclude .pre-commit-config.yaml
 exclude .readthedocs.yaml
+exclude .mailmap
 exclude AUTHORSHIP.md
 exclude CONTRIBUTING.md
 exclude Makefile