Expand 0..100 to 0..127

[dy]

+ 0..100 is human range and is kind of covered by a-Z values + 0..128 is programmatic range and it anyways starts with hex number - impossible for human to remember + 28 doesn't add extra weight + 128 better matches programmatic values eg. uint8/PCM range with 256 values + 128 is needed for midifont - even 256 values are available, although that can be problematic for linefont, besides midifont needs only 128 + it is available in latin range - a bit of trouble aligning a-Z to 128 range: the step is 2.46 + user can artificially limit values to 0..100, 28 can be considered extra clipping (that is, for audio signals)

[dy]

Ok done as:

• selection is extended to -20..120;
• values over 100 are clipping (until 120) - considering that midifont is unlikely will use hi midi notes.