feat(wm): optionally await config completion

This commit introduces a new flag to komorebi and komorebic,
--await-configuration, which when enabled, will stop the process from
processing window manager events and updating the layout until the
'komorebic complete-configuration' command has been sent.

This should typically be added at the end of a user's komorebi.ahk
configuration file if they decide to enable this feature.

resolve #190

komorebic.lib.sample.ahk

@@ -1,7 +1,7 @@
 ; Generated by komorebic.exe
 
-Start(ffm) {
-    Run, komorebic.exe start  --ffm %ffm%, , Hide
+Start(ffm, await_configuration) {
+    Run, komorebic.exe start %ffm% --await_configuration %await_configuration%, , Hide
 }
 
 Stop() {
@@ -252,6 +252,10 @@ WatchConfiguration(boolean_state) {
     Run, komorebic.exe watch-configuration %boolean_state%, , Hide
 }
 
+CompleteConfiguration() {
+    Run, komorebic.exe complete-configuration, , Hide
+}
+
 WindowHidingBehaviour(hiding_behaviour) {
     Run, komorebic.exe window-hiding-behaviour %hiding_behaviour%, , Hide
 }