database migration with async support
Apache License 2.0
```rust use asyncmigrate::{MigrationError, Migration}; use rust_embed::RustEmbed;
struct Assets;
let mut connection = asyncmigrate::connect( "postgres://dbmigration-test:dbmigration-test@127.0.0.1:5432/dbmigration-test", ) .await?;
let changeset = asyncmigrate::MigrationChangeSets::load_asset("default", Assets)?;
// Run migration connection.migrate(&changeset, None).await?;
// Rollback connection.rollback("default", None).await?; ```