v0.1.3

Bug Fixes

Fix retry buffer size calculation in AppendFormatInternal

• Changed retry buffer from written > buf.Length ? written : buf.Length * 2 to buf.Length * 2
• written is unreliable on TryFormat failure (may be 0 or partial), so always double the buffer

Improvements

Add diagnostic info to FormatException

• FormatException message now includes Type, alignment, format for easier debugging