Add yabin-format. (integer only)
Implement decimal-point and exponential notation.
Support upcase conversion for exponential notation.
Add float notation formatting, and refine decimal-point/exponential notation behavior when value is zero.
Fix float notation formatting with special flag and trim zero trailing.
Fix float notation with special flag and not zero value.
Implement NaN/INF formatting.
Replace some `not' into `null'.
Fix wrong named function call.
Refactor yabin-format.
Fix over 0 expotential on float notation formatting
Revice glich.
Add format/format-spec document.
Bump version 1.1.
Merge branch 'implement-format'