Replaced mysql with sqlite db

.gitignore

.gitlab-ci.yml

decidedb/api/package-lock.json

decidedb/api/package.json

decidedb/api/src/server.js

decidedb/api/src/user.js

decidedb/db/dockerfile

decidedb/db/my.cnf

decidedb/db/notes.txt

docker-compose.yml