remove pkg/transformers; extract shared files needed to

libraries/shared; work on automated db migration management

scripts/start_test_chain.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+MNEMONIC_PHRASE="whisper ordinary mystery awesome wood fox auction february blind volcano spare soft"
+PORT=7545
+DATABASE_PATH=test_data/test_chain/
+echo Starting ganache chain on port $PORT...
+
+ganache-cli --port $PORT \
+            --db $DATABASE_PATH \
+            2>&1 > ganache-output.log &

scripts/stop_test_chain.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+echo "Stopping ganache chain on port 7545"
+ps -ef | grep ganache | grep -v grep | awk '{print $2}' | xargs kill