Allow users to provide custom fonts via ~/.e16/fonts/
--- a/src/ttfont.c	2018-04-26 19:19:44.000000000 +0300
+++ b/src/ttfont.c	2019-03-06 06:04:33.489831326 +0300
@@ -46,6 +46,8 @@
    imlib_add_path_to_font_path(s);
    Esnprintf(s, sizeof(s), "%s/fonts", EDirRoot());
    imlib_add_path_to_font_path(s);
+   Esnprintf(s, sizeof(s), "%s/fonts", Mode.conf.dir);
+   imlib_add_path_to_font_path(s);
 #endif
 }