SQLx

Implement snowflake support via sql api #311

Job	Run time
Format	15s
Unit Test (tokio, rustls)	1m 44s
CLI Binaries (windows-latest)	2m 19s
Check (async-std, native-tls)	56s
CLI Binaries (ubuntu-latest)	37s
Check (tokio, rustls)	50s
Check (tokio, native-tls)	49s
Check (async-std, rustls)	1m 3s
MySQL	0s
SQLite	0s
MariaDB	0s
MSSQL	0s
Postgres with SSL client cert	0s
Postgres	0s
	8m 33s

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