makefont: Fix invalid C data structures declarations

[mrnuke]

The data structures generated by makefont are not valid, and may fail
to compile depending on compiler flags:

error: missing braces around initializer [-Werror=missing-braces]
| texture_glyph_t font_glyph_00000020 = {32, 2, 2, 0, 0, 9.640625f
| ^

The texture_glyph_t::kerning field is a double array, so it is invalid
to initialize it as an integer, "0". When a glyph has no kerning
pairs, initialize the "kerning" field to "{{0}}".

Remove the "texture_glyph_0x100_t" structure and incorporate the
glyphs pointer array directly into texture_font_t.

[rougier]

Thanks. Actually, I don't remember why there is a specific texture_glyph_0x100_t but I suspect here's a reason. I guess you tested then generated file and it's working as expected?

[mrnuke]

Yes, I can compile and use the generated file just fine.

[rougier]

Ok, thanks.