SQLx

Implement snowflake support via sql api #313

Job	Run time
CLI Binaries (ubuntu-latest)	42s
Unit Test (tokio, rustls)	1m 24s
Check (tokio, rustls)	51s
CLI Binaries (windows-latest)	2m 59s
Format	8s
Check (async-std, rustls)	1m 7s
Check (tokio, native-tls)	53s
Check (async-std, native-tls)	53s
SQLite	0s
Postgres	0s
MSSQL	0s
Postgres with SSL client cert	0s
MariaDB	0s
MySQL	0s
	8m 57s

Provide feedback