fix(docs): export TableWriter and Validated* vtable variants

Even though these exports aren't absolutely necessary (you can use
the types/traits without being able to name them), it makes docs
a bit better.

(also, we had a broken link to TableWriter)

Signed-off-by: Grzegorz Nosek <grzegorz.nosek@sysdig.com>

falco_plugin/src/lib.rs

@@ -290,6 +290,7 @@ pub mod async_event {
     /// The event type that can be emitted from async event plugins
     pub use falco_event::events::types::PPME_ASYNCEVENT_E as AsyncEvent;
 
+
     pub use crate::plugin::async_event::async_handler::AsyncHandler;
     pub use crate::plugin::async_event::AsyncEventPlugin;
 
@@ -638,7 +639,10 @@ pub mod listen {
 pub mod tables {
     pub use crate::plugin::tables::vtable::reader::LazyTableReader;
     pub use crate::plugin::tables::vtable::reader::TableReader;
+    pub use crate::plugin::tables::vtable::reader::ValidatedTableReader;
     pub use crate::plugin::tables::vtable::writer::LazyTableWriter;
+    pub use crate::plugin::tables::vtable::writer::TableWriter;
+    pub use crate::plugin::tables::vtable::writer::ValidatedTableWriter;
     pub use crate::plugin::tables::vtable::TablesInput;
 
     /// Exporting tables to other plugins

falco_plugin/src/plugin/tables/vtable/reader.rs

@@ -10,7 +10,8 @@ use std::marker::PhantomData;
 
 /// A vtable containing table read access methods
 ///
-/// It's used as a token to prove you're allowed to read tables in a particular context
+/// It's used as a token to prove you're allowed to read tables in a particular context.
+/// The default implementation is [`crate::tables::LazyTableReader`].
 pub trait TableReader: private::TableReaderImpl {}
 
 impl<T: private::TableReaderImpl> TableReader for T {}

falco_plugin/src/plugin/tables/vtable/writer.rs

@@ -10,6 +10,7 @@ use std::marker::PhantomData;
 /// A vtable containing table write access methods
 ///
 /// It's used as a token to prove you're allowed to write tables in a particular context
+/// The default implementation is [`crate::tables::LazyTableWriter`].
 pub trait TableWriter: private::TableWriterImpl {}
 
 impl<T: private::TableWriterImpl> TableWriter for T {}