Bump all native programs up a level

Don't categorize programs by a single backend.

programs/token/src/lib.rs

@@ -0,0 +1,24 @@
+//! The `erc20` library implements a generic erc20-like token
+
+use log::*;
+use solana_sdk::account::KeyedAccount;
+use solana_sdk::native_program::ProgramError;
+use solana_sdk::pubkey::Pubkey;
+use solana_sdk::solana_entrypoint;
+
+mod token_program;
+
+solana_entrypoint!(entrypoint);
+fn entrypoint(
+    program_id: &Pubkey,
+    info: &mut [KeyedAccount],
+    input: &[u8],
+    _tick_height: u64,
+) -> Result<(), ProgramError> {
+    solana_logger::setup();
+
+    token_program::TokenProgram::process(program_id, info, input).map_err(|err| {
+        error!("error: {:?}", err);
+        ProgramError::GenericError
+    })
+}