[Audit] Build tools, perform tests and fix.

[kateliev]

Create an automated font wide audit tool to test for the following:

General font management:

• [x] lack of glyph encoding;
• [x] wrong/not recognized/not allowed suffixes;
• [ ] wrong auto glyph recipes (probably not worth it as FL performs these on VFC load)?
• [ ] wrong metric recipes (probably not worth it as FL performs these on VFC load)?
• [ ] wrong anchor positioning across layers.

Contour/outline:

• [x] layer compatibility;
• [x] PS contour winding;
• [x] start node positioned in lower left quadrant;
• [x] semi vertical and horizontal lines (1+ off);
• [x] broken smooth nodes;
• [x] non-integer coordinates;

@tphinney any additional test suggestions are welcome. If you have any requests please add them to the above list. Also led me know if you would like some preflight tool in addition to the audit one that i am currently working on.

[kateliev]

The tool is now ready and the results from the tests performed are as follows:

• [x] Line >> Semi Vertical (278)
• [x] Line >> Semi Horizontal (51)
• [ ] Contour >> Possible non matching start point (304)
• [x] Layer >> Contour direction is not PS (539)
• [x] Layer >> Non integer coordinates (216)
• [x] Outline >> Broken smooth connections (48)
• [x] Contour >> Non matching winding direction (3)

Note: Where (X) indicates glyphs affected. Also please not that the tests performed are pretty harsh and there could be false positives especially in slanted masters...

Please see a complete report is attached to this comment: SG-Audit-Record-220411.txt