build: Switch to generated object_tracker.cpp

- updated desktop/android build
- removed layers/object_tracker.cpp
- updated doc validator script for new location
- updated error database for 124 new checks
- added gen'd VU to GetSwapchainImages

Change-Id: If1b218dfcf62b203a8df96a0f12cbeb8bdcaf826
diff --git a/scripts/vk_validation_stats.py b/scripts/vk_validation_stats.py
index 2e7922d..93836cf 100755
--- a/scripts/vk_validation_stats.py
+++ b/scripts/vk_validation_stats.py
@@ -51,12 +51,12 @@
 ]
 generated_layer_source_files = [
 'parameter_validation.h',
+'object_tracker.cpp',
 ]
 layer_source_files = [
 '../layers/core_validation.cpp',
 '../layers/descriptor_sets.cpp',
 '../layers/parameter_validation.cpp',
-'../layers/object_tracker.cpp',
 '../layers/object_tracker_utils.cpp',
 '../layers/shader_validation.cpp',
 '../layers/buffer_validation.cpp',