Fix wrong documentation

[fire]

https://github.com/V-Sekai/godot-vsk-sqlite/blob/main/doc_classes/SQLiteQuery.xml

The query is provided as a string.

The code separates create_query and execute the query.

The execute query takes Variants as array elements.

[fire]

See https://github.com/V-Sekai/godot-vsk-sqlite/blob/main/src/godot_sqlite.cpp#L215

Sqlite has four major types https://www.sqlite.org/datatype3.html

Each value stored in an SQLite database (or manipulated by the database engine) has one of the following storage classes:

NULL. The value is a NULL value.

INTEGER. The value is a signed integer, stored in 0, 1, 2, 3, 4, 6, or 8 bytes depending on the magnitude of the value.

REAL. The value is a floating point value, stored as an 8-byte IEEE floating point number.

TEXT. The value is a text string, stored using the database encoding (UTF-8, UTF-16BE or UTF-16LE).

BLOB. The value is a blob of data, stored exactly as it was input.

Godot Engine types are cast into the four sqlite types.