Adding Sendinblue integration

[absorbb]

Discussed in https://github.com/jitsucom/jitsu/discussions/737

^{Originally posted by SAVE-POlNT December 24, 2021} Hello , great product here btw im addicted to finding new Dev tools in general and as a data persone jitsu , airbyte and n8n are the best OSS service connectors , but i do not know why all of them don't have a connector to one of the most used CRMS (sendinblue) it is easy to interact with. it will be great if someone can help me make this possible i don (t know much about jitsu but i think it uses airbyte connectos so maybe making this for airbyte will make it available for jitsu ?