Fix issue with mouse input for viewport camera (#3210)

* fix for drift accumulating in the viewport camera

Signed-off-by: hultonha <hultonha@amazon.co.uk>

* fix typo and update how events are stored

Signed-off-by: hultonha <hultonha@amazon.co.uk>

* respond to PR feedback and fix linux and windows build issues

Signed-off-by: hultonha <hultonha@amazon.co.uk>

* fix failing unit tests in camera input

Signed-off-by: hultonha <hultonha@amazon.co.uk>

Code/Editor/CMakeLists.txt

@@ -242,6 +242,7 @@ if(PAL_TRAIT_BUILD_TESTS_SUPPORTED)
                 Legacy::CryCommon
                 AZ::AzToolsFramework
                 AZ::AzToolsFramework.Tests
+                AZ::AzFrameworkTestShared
                 AZ::AzToolsFrameworkTestCommon
                 Legacy::EditorLib
                 Gem::AtomToolsFramework.Static