Further source layout rearrangement

Moved most files to `src/kaleidoscope/plugin/LED-AlphaSquare`, leaving only the
main one on the outside. This is to decrease the number of files in
`src/kaleidoscope/plugins` and not pollute the namespace needlessly.

Signed-off-by: Gergely Nagy <algernon@keyboard.io>

src/Kaleidoscope-LED-AlphaSquare.h

@@ -18,5 +18,5 @@
 #pragma once
 
 #include <kaleidoscope/plugin/LED-AlphaSquare.h>
-#include <kaleidoscope/plugin/AlphaSquare-Effect.h>
-#include <kaleidoscope/plugin/AlphaSquare-Symbols.h>
+#include <kaleidoscope/plugin/LED-AlphaSquare/Effect.h>
+#include <kaleidoscope/plugin/LED-AlphaSquare/Symbols.h>

src/kaleidoscope/plugin/LED-AlphaSquare.cpp

@@ -16,7 +16,7 @@
  */
 
 #include <Kaleidoscope-LED-AlphaSquare.h>
-#include <kaleidoscope/plugin/LED-AlphaSquare-4x4.h>
+#include <kaleidoscope/plugin/LED-AlphaSquare/Font-4x4.h>
 
 namespace kaleidoscope {
 namespace plugin {