[WIP] Splitting notification server repository

split.sh

git clone ../notification_server/
cd notification_server
git filter-branch --prune-empty --index-filter 'git rm --cached --ignore-unmatch node_modules/* test/jmeter/* test/jMeter/*' HEAD
cd ..
git clone notification_server notification_server_base
rm -rf notification_server

git clone ../notification_server/
cd notification_server
git filter-branch --prune-empty --subdirectory-filter node_modules/
cd ..
git clone notification_server notification_server_nodemodules
rm -rf notification_server

git clone ../notification_server/
cd notification_server
git filter-branch --prune-empty --subdirectory-filter test/jmeter/
cd ..
git clone notification_server notification_server_jmeter
rm -rf notification_server