chore: import upstream snapshot with attribution

scripts/upload_easygraph.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+# GNU/Linux
+if [ ["$(expr substr $(uname -s) 1 5)" = "Linux"] ]; then
+    # replace xxxx with your docker name
+    docker cp xxxx:/src/Easy-Graph/dist $HOME/dist
+    python -m twine upload $HOME/dist/*
+
+# Mac OS X
+else
+    export WORKDIR=$HOME/build
+    if [ ! -d $WORKDIR ]; then
+        echo "dist is not existing"
+        exit 0
+    else
+        cd $WORKDIR/Easy-Graph
+        python -m twine upload dist/*
+    fi
+fi