Degiro-connector

- Replace `quotecast` module with `degiro_connector.quotecast`
- Replace `trading` module with `degiro_connector.trading`
- Add a migration script :
bash
python -m degiro_connector.migration.from_0_1_3_to_1_0_0

- Fixing version number

- Fixing imports issue

- Limit installed packages

- Fixing camel case on protobuf fields

- Fixing versioning