{lyn9135} Adding a default prefab during scene processing (#6851)

* {lyn8865} Adding DataTypes::ScriptProcessorFallbackLogic

- Give the user an option how to handle fallback logic for script rules

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* the new code found an error in a Python script... it seems to work!

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* fixing up the regression test

Signed-off-by: Jackson <23512001+jackalbe@users.noreply.github.com>

* dump version number

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* Adding first pass of logic plus test file

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* Applying scene graph transform to entity transform
Excluding other mesh names in the mesh groups


Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* test: parent top stack


Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* cleaned up the code and parent tops FBX file

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* adding tests for the proc prefab constructor logic

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* Linux/Clang fixes

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* assigning matrix data to pass the tests in Linux (and others...)

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* Addressed some concerns based on PR feedback

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* encapsulating the logic into readable sections

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

* added comment to watch folder to asset path info

Signed-off-by: Allen Jackson <23512001+jackalbe@users.noreply.github.com>

AutomatedTesting/Assets/TestAnim/parent_tops.fbx

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:3789abdf439a6d70438fd4bb1e06881ae6686a4699209c6bc371d22d161e5347
+size 26476

AutomatedTesting/Assets/TestAnim/parenting_test_default.fbx

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:c987d7d79685fda83efcffb7e1afbcd356c37fc68ec5c663a89b02d4df10caea
+size 46412