Investigate scraping debug information from native library files

Currently we only support loading symbols from libraries (in the form of memory addresses), as far as loading information from libraries goes.

It would be useful to investigate what additional information we can get out of library files, such as:
 - Debug information describing the type of symbols, which could be used to do additional safety checking when linking native functions.
 - Collecting all symbols, in order to iterate over them.
 - ABI/Linker/Compiler version information, for checking things like ABI compatibility.
  - Names of dependency libraries.
  - More??