fix ansifeed distribution

Author: swistakm

MANIFEST.in

@@ -14,3 +14,6 @@ recursive-include config-cpp *.cpp *.h
 recursive-include imgui-cpp *.cpp *.h
 prune imgui-cpp/examples
 prune imgui-cpp/extra_fonts
+
+# ansifeed sources
+recursive-include ansifeed-cpp *.cpp *.h

setup.py

@@ -125,7 +125,7 @@ def backend_extras(*requirements):
             # note: for raising custom exceptions directly in ImGui code
             ('PYIMGUI_CUSTOM_EXCEPTION', None)
         ] + os_specific_macros + general_macros,
-        include_dirs=['imgui', 'config-cpp', 'imgui-cpp'],
+        include_dirs=['imgui', 'config-cpp', 'imgui-cpp', 'ansifeed-cpp'],
     ),
 ]