Updated validator config according to suggestions.

- Directory structure changed slightly
 - Uses a filter_map instead of a for loop.
 - All errors reading files does not prevent others from being read.
 - The accounts manager needs to generate files first, with the same structure.

validator_client/src/lib.rs

@@ -1,3 +1,3 @@
 pub mod config;
 
-pub use crate::config::ValidatorClientConfig;
+pub use crate::config::Config;