Add new AXI4-Stream UART IP and update .gitignore for Lab2 files

.gitignore

@@ -19,8 +19,6 @@
 *.tsi
 *.vcd
 *.vdi
-*.xml
-*.tcl
 *.ltx
 *.xci
 *.dcp
@@ -44,12 +42,15 @@
 *.qws
 *.wdf
 *.lpr
+*.xdc
+*.bxml
 
 
 # Vivado project directories
 *.sim/
 *.cache/
 *.hw/
+*.gen/
 *.srcs/
 .hwdbg/
 *.ip_user_files/
@@ -68,3 +69,11 @@ vivado*.backup.log
 
 # SDK workspace
 .sdk/
+
+# Lab2 files
+LAB2/src/lab_2/ipshared/
+LAB2/src/lab_2/ip/
+LAB2/src/lab_2/sim/
+LAB2/src/lab_2/synth/
+LAB2/src/lab_2/ui/
+LAB2/src/lab_2/hw_handoff/