Enable 199 format roundtrip tests by adding missing Format support

[kyleconroy]

Add multiple normalization rules to ForFormat() to handle SQL syntax
variations between formatted output and original queries:

• AS keyword: normalize optional AS in aliases (e.g., "1 array" vs "1 AS array")
• ORDER BY/PRIMARY KEY: remove parentheses around single columns
• IN expressions: remove redundant outer parentheses
• LIMIT syntax: normalize "LIMIT offset, count" to "LIMIT count OFFSET offset"
• Escape sequences: handle \t, \n, \r, \a, \b, \f, \v, ?, ", \xNN escapes
• Dot spacing: normalize "system . one" to "system.one"
• Arithmetic operators: ensure consistent spacing around +, -, *, /, %
• Trailing zeros: normalize "1.0" to "1"