public boolean isPluginSupported() {
		return (getControllerProperties().getPropertyBoolean(PROP_CONTROLLER_PLUGIN_SUPPORT));
	}
Check if the plugin support is enabled.
<p/>
The reason why we need this configuration is that it takes time to initialize plugin system in unit test context.

@return true if the plugin is supported.
ngrinder-controller/src/main/java/org/ngrinder/infra/config/Config.java