glfw: add vulkan headers

Signed-off-by: Stephen Gutekanst <stephen@hexops.com>

glfw/upstream/vulkan_headers/.cmake-format.py

@@ -0,0 +1,34 @@
+# Configuration for cmake-format (v0.4.1, circa Jul 2018)
+# https://github.com/cheshirekow/cmake_format
+
+# How wide to allow formatted cmake files
+line_width = 132
+
+# How many spaces to tab for indent
+tab_size = 4
+
+# If arglists are longer than this, break them always
+max_subargs_per_line = 3
+
+# If true, separate flow control names from their parentheses with a space
+separate_ctrl_name_with_space = False
+
+# If true, separate function names from parentheses with a space
+separate_fn_name_with_space = False
+
+# If a statement is wrapped to more than one line, than dangle the closing
+# parenthesis on it's own line
+dangle_parens = False
+
+# What character to use for bulleted lists
+bullet_char = u'*'
+
+# What character to use as punctuation after numerals in an enumerated list
+enum_char = u'.'
+
+# What style line endings to use in the output.
+line_ending = u'unix'
+
+# Format command names consistently as 'lower' or 'upper' case
+command_case = u'lower'
+