Framework Plan

[ChenxingLi]

• Generalize TableName to support different table set.
• Make TableRead support lifetime for both 'db and 'static. (Hint: fn view<'a, T: TableSchema>(self) -> Result<impl 'a + TableRead<T>> where Self: 'a;)
• get_raw for KeyValueStoreRead

Other lints:

• use small vec for EncodeKey