SQLFile: In CREATE TABLE regex, allow . to match newlines

Previously, garbage content before or after the CREATE TABLE was causing match
failure (causing Skeema to report the file as invalid) instead of properly
ignoring the extra content.

sqlfile.go

@@ -16,7 +16,7 @@ import (
 // [2] is the table name -- note we do not allow whitespace even if backtick-escaped
 // [3] is the table body -- later we scan this for disallowed things
 // [4] is any text after the table body -- we ignore this
-var reParseCreate = regexp.MustCompile(`(?i)^(.*)\s*create\s+table\s+(?:if\s+not\s+exists\s+)?` + "`?([^\\s`]+)`?" + `\s+([^;]+);?\s*(.*)$`)
+var reParseCreate = regexp.MustCompile(`(?is)^(.*)\s*create\s+table\s+(?:if\s+not\s+exists\s+)?` + "`?([^\\s`]+)`?" + `\s+([^;]+);?\s*(.*)$`)
 
 // We disallow CREATE TABLE SELECT and CREATE TABLE LIKE expressions
 var reBodyDisallowed = regexp.MustCompile(`(?i)^(as\s+select|select|like|[(]\s+like)`)