Snippet for applying a feature file to a font

It would be nice to also handle MTI feature files, and to process
TTX in addition to binary fonts, and and and... but it's a start.
https://github.com/behdad/fonttools/issues/527

Snippets/apply-feature-file.py

@@ -0,0 +1,19 @@
+#!/usr/bin/env python
+
+from __future__ import print_function, division, absolute_import
+from fontTools.misc.py23 import *
+import fontTools.feaLib.builder as feaLibBuilder
+from fontTools.ttLib import TTFont
+import sys
+
+if len(sys.argv) != 4:
+    print("usage: apply-feature-file.py features.fea in.ttf out.ttf")
+    sys.exit(1)
+
+inputFeaturePath = sys.argv[1]
+inputFontPath = sys.argv[2]
+outputFontPath = sys.argv[3]
+
+font = TTFont(inputFontPath)
+feaLibBuilder.addOpenTypeFeatures(inputFeaturePath, font)
+font.save(outputFontPath)