chore: move mempool tests into their own file and API sync

Author: jcnelson

stackslib/src/net/api/tests/mod.rs

@@ -600,6 +600,7 @@ impl<'a> TestRPC<'a> {
                     peer_1.chainstate(),
                     &consensus_hash,
                     &stacks_block.block_hash(),
+                    true,
                     txid.clone(),
                     tx_bytes,
                     tx_fee,

stackslib/src/net/api/tests/postmempoolquery.rs

@@ -174,6 +174,7 @@ fn test_stream_mempool_txs() {
             &mut chainstate,
             &ConsensusHash([0x1 + (block_height as u8); 20]),
             &BlockHeaderHash([0x2 + (block_height as u8); 32]),
+            false,
             txid.clone(),
             tx_bytes,
             tx_fee,

stackslib/src/net/mod.rs

@@ -124,6 +124,7 @@ pub mod http;
 /// Links http crate to Stacks
 pub mod httpcore;
 pub mod inv;
+pub mod mempool;
 pub mod neighbors;
 pub mod p2p;
 /// Implements wrapper around `mio` crate, which itself is a wrapper around Linux's `epoll(2)` syscall.