Added insert and update to user db

decideapp/package-lock.json

decideapp/package.json

decideapp/src/components/LoginBlock.tsx

decideapp/src/js/dbapi.js

decideapp/src/pages/User.tsx

decidedb/api/package-lock.json

decidedb/api/package.json

decidedb/api/src/server.js

decidedb/api/src/user.js