Added Hazard Unit file (tested compiling correctly) labelled variables inside off of the Assignment 3 Questions PDF Figure 2.

Also have a placeholder MUX to place before the ALU for adding hazard unit functionality

ModelSim/transcript

@@ -1,32 +1,2 @@
 # Loading project Assignment_2
-# Compile of alu.sv was successful.
-# Compile of alu_tb.sv was successful.
-# Compile of assignment2.sv was successful.
-# Compile of asu.sv was successful.
-# Compile of asu_tb.sv was successful.
-# Compile of ByteIM.sv failed with 1 errors.
-# Compile of control_unit.sv was successful.
-# Compile of instruction_classifier.sv was successful.
-# Compile of instruction_classifier_tb.sv was successful.
-# Compile of instruction_counter.sv was successful.
-# Compile of lu.sv was successful.
-# Compile of lu_tb.sv was successful.
-# Compile of mips.sv was successful.
-# Compile of ram.sv was successful.
-# Compile of register_file.sv was successful.
-# Compile of rom.sv was successful.
-# Compile of seven_seg.sv was successful.
-# Compile of seven_seg_4digit.sv was successful.
-# Compile of seven_seg_tb.sv was successful.
-# Compile of shifter.sv was successful.
-# Compile of shifter_tb.sv was successful.
-# Compile of sign_extender.sv was successful.
-# Compile of assignment3.sv failed with 1 errors.
-# Compile of gatereg.sv was successful.
-# 24 compiles, 2 failed with 2 errors.
-# Compile of assignment3.sv failed with 1 errors.
-# Compile of assignment3.sv failed with 1 errors.
-# Compile of assignment3.sv was successful.
-# Compile of ByteIM.sv failed with 1 errors.
-# Compile of ByteIM.sv failed with 1 errors.
-# Compile of ByteIM.sv was successful.
+# Compile of hazard_unit.sv was successful.