Added "Snowflake" DBMS support (#5980)

* Added SQL queries for 'Snowflake' DBMS

* Added necessary constants for the 'Snowflake' DBMS

* Added the 'Snowflake' DBMS to existing conditional which adds dynamic values to hardcoded statements (queries.xml)

* Added plugin logic for the 'Snowflake' DBMS

* Modified 'dbs' query to include 'ORDER BY'

* Moved 'LIMIT' to appear before 'OFFSET'

plugins/dbms/snowflake/__init__.py

@@ -0,0 +1,29 @@
+#!/usr/bin/env python
+
+"""
+Copyright (c) 2006-2025 sqlmap developers (https://sqlmap.org)
+See the file 'LICENSE' for copying permission
+"""
+
+from lib.core.enums import DBMS
+from lib.core.settings import SNOWFLAKE_SYSTEM_DBS
+from lib.core.unescaper import unescaper
+from plugins.dbms.snowflake.enumeration import Enumeration
+from plugins.dbms.snowflake.filesystem import Filesystem
+from plugins.dbms.snowflake.fingerprint import Fingerprint
+from plugins.dbms.snowflake.syntax import Syntax
+from plugins.dbms.snowflake.takeover import Takeover
+from plugins.generic.misc import Miscellaneous
+
+class SnowflakeMap(Syntax, Fingerprint, Enumeration, Filesystem, Miscellaneous, Takeover):
+    """
+    This class defines Snowflake methods
+    """
+
+    def __init__(self):
+        self.excludeDbsList = SNOWFLAKE_SYSTEM_DBS
+
+        for cls in self.__class__.__bases__:
+            cls.__init__(self)
+
+    unescaper[DBMS.SNOWFLAKE] = Syntax.escape