Feature Request: extend method for DynamicTable

[hxzhao527]

Now DynamicTable just is an alias of ParsingTable.

rust-elf/src/dynamic.rs

Line 6 in 2d845d7

pub type DynamicTable<'data, E> = ParsingTable<'data, E, Dyn>;

It does not implement any other method except iter to get Dyn.
So is there a plan to add more methods for DynamicTable, like get_needed_libraries.