Validator CLI option to enable just-in-time compilation of BPF (#13789)

* Adds a CLI option to the validator to enable just-in-time compilation of BPF.

* Refactoring to use bpf_loader_program instead of feature_set to pass JIT flag from the validator CLI to the executor.

runtime/src/bank.rs

@@ -10085,6 +10085,7 @@ pub(crate) mod tests {
             _keyed_accounts: &[KeyedAccount],
             _instruction_data: &[u8],
             _invoke_context: &mut dyn InvokeContext,
+            _use_jit: bool,
         ) -> std::result::Result<(), InstructionError> {
             Ok(())
         }