quirks: Menlo/Monaco should disable ligatures by default (#331)

* font: disable default font features for Menlo and Monaco

Both of these fonts have a default ligature on "fi" which makes terminal
rendering super ugly. The easiest thing to do is special-case these
fonts and disable ligatures. It appears other terminals do the same
thing.

pkg/freetype/face.zig

@@ -83,6 +83,18 @@ pub const Face = struct {
             @intFromEnum(tag),
         )));
     }
+
+    /// Retrieve the number of name strings in the SFNT ‘name’ table.
+    pub fn getSfntNameCount(self: Face) usize {
+        return @intCast(c.FT_Get_Sfnt_Name_Count(self.handle));
+    }
+
+    /// Retrieve a string of the SFNT ‘name’ table for a given index.
+    pub fn getSfntName(self: Face, i: usize) Error!c.FT_SfntName {
+        var name: c.FT_SfntName = undefined;
+        const res = c.FT_Get_Sfnt_Name(self.handle, @intCast(i), &name);
+        return if (intToError(res)) |_| name else |err| err;
+    }
 };
 
 /// An enumeration to specify indices of SFNT tables loaded and parsed by

pkg/freetype/freetype-zig.h

@@ -1,3 +1,5 @@
 #include <ft2build.h>
 #include FT_FREETYPE_H
 #include FT_TRUETYPE_TABLES_H
+#include <freetype/ftsnames.h>
+#include <freetype/ttnameid.h>