Phoenix v1/add getter for fee rate (#9)

Changes:
- Create traits for getting tick size and taker fee bps
- Implement traits for FIFOMarket

Author: jarry-xiao

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "phoenix-v1"
-version = "0.1.0"
+version = "0.1.1"
 edition = "2021"
 resolver = "2"
 repository = "https://github.com/Ellipsis-Labs/phoenix-v1"

Cargo.toml

@@ -252,6 +252,14 @@ impl<
         std::mem::size_of::<Self>()
     }
 
+    fn get_taker_fee_bps(&self) -> u64 {
+        self.taker_fee_bps
+    }
+
+    fn get_tick_size(&self) -> QuoteLotsPerBaseUnitPerTick {
+        self.tick_size_in_quote_lots_per_base_unit
+    }
+
     fn get_base_lots_per_base_unit(&self) -> BaseLotsPerBaseUnit {
         self.base_lots_per_base_unit
     }

src/state/markets/fifo.rs

@@ -110,6 +110,8 @@ pub trait Market<
         TypedLadder { bids, asks }
     }
 
+    fn get_taker_fee_bps(&self) -> u64;
+    fn get_tick_size(&self) -> QuoteLotsPerBaseUnitPerTick;
     fn get_base_lots_per_base_unit(&self) -> BaseLotsPerBaseUnit;
     fn get_sequence_number(&self) -> u64;
     fn get_registered_traders(&self) -> &dyn OrderedNodeAllocatorMap<MarketTraderId, TraderState>;