feat(services/autumn): file uploads

feat(services/autumn): deduplicate uploads
feat(services/autumn): ClamAV support

crates/core/database/src/lib.rs

@@ -16,6 +16,8 @@ extern crate revolt_optional_struct;
 #[macro_use]
 extern crate revolt_result;
 
+pub use iso8601_timestamp;
+
 #[cfg(feature = "mongodb")]
 pub use mongodb;
 
@@ -91,4 +93,4 @@ pub fn if_false(t: &bool) -> bool {
 /// Utility function to check if an option doesnt contain true
 pub fn if_option_false(t: &Option<bool>) -> bool {
     t != &Some(true)
-}
+}