Add extension file for NV_half_float

This should have been in 9087cc0 but went unnoticed for a month due to
how the extension headers are handled.

diff --git a/extensions/nv_half_float.glext b/extensions/nv_half_float.glext
new file mode 100644 (file)
index 0000000..4b39a3a
--- /dev/null
+++ b/extensions/nv_half_float.glext
@@ -0,0 +1 @@
+extension NV_half_float