feat(sql): Improve type decoding. Adds support for time and dates (#266)

* feat(sql): Improve type decoding. Adds support for time and dates

* remove default feat

* typo

plugins/sql/src/decode/mod.rs

@@ -0,0 +1,15 @@
+#[cfg(feature = "mysql")]
+mod mysql;
+#[cfg(feature = "postgres")]
+mod postgres;
+#[cfg(feature = "sqlite")]
+mod sqlite;
+
+#[cfg(feature = "mysql")]
+pub(crate) use mysql::to_json;
+
+#[cfg(feature = "postgres")]
+pub(crate) use postgres::to_json;
+
+#[cfg(feature = "sqlite")]
+pub(crate) use sqlite::to_json;