build: add script for running unittests on local

scripts/run_unittests.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+#dart pub global activate fvm
+#export PATH="$PATH":"$HOME/.pub-cache/bin"
+fvm use 3.24.5
+
+fvm flutter clean
+fvm flutter pub get
+
+fvm dart run build_runner build --delete-conflicting-outputs
+fvm dart run intl_utils:generate
+
+# when flutter analyze issue found then exit
+fvm flutter analyze
+if [ $? -ne 0 ]; then
+  echo "Flutter analyze found issues. Exiting."
+  exit 1
+fi
+
+fvm flutter test --coverage
+if [ $? -ne 0 ]; then
+  echo "Flutter test found issues. Exiting."
+  exit 1
+fi