impl: add the option to disable ssh wildcard configuration

It will be used later by the Coder Settings view to allow users
to enable or disable SSH hostname wildcard configuration.

Author: fioan89

src/main/kotlin/com/coder/gateway/settings/CoderSettings.kt

@@ -98,6 +98,12 @@ open class CoderSettingsState(
     // around issues on macOS where it periodically wakes and Gateway
     // reconnects, keeping the workspace constantly up.
     open var disableAutostart: Boolean = getOS() == OS.MAC,
+
+    /**
+     * Whether SSH wildcard config is enabled
+     */
+    open var isSshWildcardConfigEnabled: Boolean = true,
+
     // Extra SSH config options.
     open var sshConfigOptions: String = "",
     // An external command to run in the directory of the IDE before connecting
@@ -199,6 +205,12 @@ open class CoderSettings(
     val disableAutostart: Boolean
         get() = state.disableAutostart
 
+    /**
+     * Whether SSH wildcard config is enabled
+     */
+    val isSshWildcardConfigEnabled: Boolean
+        get() = state.isSshWildcardConfigEnabled
+
     /**
      * Extra SSH config to append to each host block.
      */