Directory Restructure (#1163)

* Move tests -> testing

* Directory restructure

* Update Cargo.toml during restructure

* Update Makefile during restructure

* Fix arbitrary path

consensus/state_processing/src/lib.rs

@@ -0,0 +1,22 @@
+#![deny(clippy::integer_arithmetic)]
+
+#[macro_use]
+mod macros;
+
+pub mod common;
+pub mod genesis;
+pub mod per_block_processing;
+pub mod per_epoch_processing;
+pub mod per_slot_processing;
+pub mod test_utils;
+
+pub use genesis::{
+    eth2_genesis_time, initialize_beacon_state_from_eth1, is_valid_genesis_state,
+    process_activations,
+};
+pub use per_block_processing::{
+    block_signature_verifier, errors::BlockProcessingError, per_block_processing, signature_sets,
+    BlockSignatureStrategy, BlockSignatureVerifier, VerifySignatures,
+};
+pub use per_epoch_processing::{errors::EpochProcessingError, per_epoch_processing};
+pub use per_slot_processing::{per_slot_processing, Error as SlotProcessingError};