chore: add DISCLAIMER & NOTICE & LICENSE file to binary package

Author: imbajin

DISCLAIMER

@@ -0,0 +1,7 @@
+Apache HugeGraph (incubating) is an effort undergoing incubation at The Apache Software Foundation (ASF), sponsored by the Apache Incubator PMC.
+
+Incubation is required of all newly accepted projects until a further review indicates that the infrastructure, communications,
+and decision making process have stabilized in a manner consistent with other successful ASF projects.
+
+While incubation status is not necessarily a reflection of the completeness or stability of the code,
+it does indicate that the project has yet to be fully endorsed by the ASF.

NOTICE

@@ -0,0 +1,5 @@
+Apache HugeGraph(incubating)
+Copyright 2022-2023 The Apache Software Foundation
+
+This product includes software developed at
+The Apache Software Foundation (http://www.apache.org/).

hugegraph-dist/scripts/apache-release.sh

@@ -62,10 +62,11 @@ done
 ##### 3.2 Generate SHA512 file
 shasum --version 1>/dev/null || exit
 for i in *.tar.gz; do
-  echo "$i" && shasum -a 512 "$i" >"$i".sha512
+  shasum -a 512 "$i" | tee "$i".sha512
 done
 
 #### 3.3 check signature & sha512
+echo "#### start to check signature & hashcode ####"
 for i in *.tar.gz; do
   echo "$i"
   gpg --verify "$i".asc "$i" || exit

pom.xml

@@ -232,6 +232,7 @@
                         <exclude>CONFIG.ini</exclude>
                         <exclude>GROUPS</exclude>
                         <exclude>OWNERS</exclude>
+                        <exclude>DISCLAIMER</exclude>
                         <!-- GitHub -->
                         <exclude>.github/**/*</exclude>
                         <!-- Intellij -->