Communicate the reason for the layout invalidation, store and process the reasons, this is an initial setup, we will continue working on it. The new system will allow us to fine grain the invalidations to avoid re-layouting on each attribute change, this commit already does some of this but it's not fully fine-grained and needs more work.

.ecode/project_build.json

@@ -220,7 +220,7 @@
         "working_dir": "${project_root}/bin"
       },
       {
-        "args": "--filter=\"UIHTML.FlexFormLayout\"",
+        "args": "",
         "command": "${project_root}/bin/unit_tests/eepp-unit_tests-debug",
         "name": "eepp-unit_tests-debug",
         "working_dir": "${project_root}/bin/unit_tests/"