Make a structure for frontend visualizer

Created visualizer module in compiler. It will contain basic tests for renderer. Additionally added three different modules in visualizer:
1) psi - will contain renderer for old frontend
2) fir - renderer for new frontend
3) common - will contain common code for both renderers

settings.gradle

@@ -35,6 +35,10 @@ include ":kotlin-build-common",
         ":compiler:resolution",
         ":compiler:serialization",
         ":compiler:psi",
+        ":compiler:visualizer",
+        ":compiler:visualizer:common",
+        ":compiler:visualizer:render-fir",
+        ":compiler:visualizer:render-psi",
         ":compiler:fir:cones",
         ":compiler:fir:tree",
         ":compiler:fir:tree:visitors-generator",