Refactor: Cleanup InstructionProcessor (#21404)

* Moves create_message(), native_invoke() and process_cross_program_instruction()
from the InstructionProcessor to the InvokeContext so that they can have a useful "self" parameter.

* Moves InstructionProcessor into InvokeContext and Bank.

* Moves ExecuteDetailsTimings into its own file.

* Moves Executor into invoke_context.rs

* Moves PreAccount into its own file.

* impl AbiExample for BuiltinPrograms

core/src/cost_update_service.rs

@@ -204,7 +204,7 @@ impl CostUpdateService {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use solana_program_runtime::instruction_processor::ProgramTiming;
+    use solana_program_runtime::timings::ProgramTiming;
     use solana_sdk::pubkey::Pubkey;
 
     #[test]