Initial commit for vulkan tutorial

Following along the first 9 chapters of the Vulkan HelloTriangle
tutorial.

incremental_patch.sh

@@ -0,0 +1,31 @@
+#!/bin/sh
+
+# Check if both a starting file and patch are provided
+if [ $# != 2 ]; then
+    echo "usage: <first_file.cpp> <patch.txt>"
+    echo "specified patch will be applied to first_file.cpp and every code file larger than it (from later chapters)"
+    exit 1
+fi
+
+# Iterate over code files in order of increasing size
+# i.e. in order of chapters (every chapter adds code)
+apply_patch=false
+
+for f in `ls -Sr *.cpp`
+do
+    # Apply patch on every code file including and after initial one
+    if [ $f = $1 ] || [ $apply_patch = true ]; then
+        apply_patch=true
+
+        patch -f $f < $2 | grep -q "FAILED" > /dev/null
+        if [ $? = 0 ]; then
+            echo "failed to apply patch to $f"
+            exit 1
+        fi
+
+        rm -f *.orig
+    fi
+done
+
+echo "patch successfully applied to all files"
+exit 0