Firebird high-level native client for Node.js / TypeScript updated to v0.0.1-beta.2 with a few changes

Firebird high-level native client for Node.js / TypeScript updated to v0.0.1-beta.2 with a few changes:

Fixed crash after re-creating native client – #11
Moving to monorepo using lerna and yarn workspaces.
Fixed #2 – Throw an error when the client library is not loaded correctly.
Replace mocha and power-assert by jest.
Added appveyor.yml and build status.
Fix warning C4530 in Windows build.
Add node 10 to travis build matrix.