Reorganization of files

src/axi/axi_pkg.sv

@@ -0,0 +1,14 @@
+package axi_pkg;
+    import uvm_pkg::*;
+    import axi_types::*;
+
+    `include "uvm_macros.svh"
+
+    // UVM data items
+    `include "axi_transaction.sv"
+
+    // UVM components
+    `include "axi_driver.sv"
+    `include "axi_monitor.sv"
+    `include "axi_agent.sv"
+endpackage