Add trait TryFromTableAttribute

* Add trait `TryFromTableAttribute` instead of using `TryFrom<TableAttribute> for T`
* Replace all the different macros in table_entry.rs with 1 single macro
* Blanket `impl<T: Into<TableAttribute>> From<Option<T>> for TableAttribute`
* Blanket `impl<T: Into<TableAttribute>> From<Vec<T>> for TableAttribute`
* Blanket `impl<T: TryFromTableAttribute> TryFromTableAttribute for Option<T>`
* Blanket `impl<T: TryFromTableAttribute> TryFromTableAttribute for Vec<T>`
* Fix the derive macros to use the new traits

Author: Nicklas Warming Jacobsen

cryptonamo-derive/src/decryptable.rs

@@ -27,7 +27,7 @@ pub(crate) fn derive_decryptable(input: DeriveInput) -> Result<TokenStream, syn:
             let attr_ident = format_ident!("{attr}");
 
             quote! {
-                #attr_ident: unsealed.from_plaintext(#attr)?.try_into()?
+                #attr_ident: ::cryptonamo::traits::TryFromTableAttr::try_from_table_attr(unsealed.from_plaintext(#attr)?)?
             }
         }))
         .chain(skipped_attributes.iter().map(|attr| {

cryptonamo-derive/src/encryptable.rs

@@ -43,7 +43,7 @@ pub(crate) fn derive_encryptable(input: DeriveInput) -> Result<TokenStream, syn:
             let attr_ident = format_ident!("{attr}");
 
             quote! {
-                .add_plaintext(#attr, |x| cryptonamo::traits::TableAttribute::from(&x.#attr_ident))
+                .add_plaintext(#attr, |x| cryptonamo::traits::TableAttribute::from(x.#attr_ident.clone()))
             }
         }));
 

src/encrypted_table/mod.rs

@@ -2,7 +2,7 @@ pub mod query;
 mod table_entry;
 pub use self::{
     query::{QueryBuilder, QueryError},
-    table_entry::{TableAttribute, TableEntry},
+    table_entry::{TableAttribute, TableEntry, TryFromTableAttr},
 };
 use crate::{
     crypto::*,