lots of changes:

- added man command
- added unit tests
- fixed import+export file parameters (now -o and -r respectively)
- added README + License
- added ci pipelines

t/restore.txtar

@@ -0,0 +1,15 @@
+# setup simple db
+exec anydb -f test.db set foo bar
+
+# create backup
+exec anydb -f test.db export -o backup.json
+stdout 'database contents exported to backup.json'
+
+# import into new db
+exec anydb -f new.db import -r backup.json
+stdout 'imported.*entries'
+
+# check contents
+exec anydb -f new.db list
+stdout foo.*bar
+