Add setting for toggle debuging

Please add a boolean setting for prevent showing debug messages and check it in "utility.js" file in when you are calling this methods:
outputChannel_1.OutputChannel.appendLine("[Start] Executing MySQL query...");
outputChannel_1.OutputChannel.appendLine("[Done] Finished MySQL query.");

Start by reading utility.js and tracing the two OutputChannel.appendLine calls named in the issue. Find where the extension defines settings, add a boolean debug-output toggle, and verify that disabling it prevents these messages while enabling it preserves them.

Written by the indexing model from the issue text.