Add csrss app module (#18975)
Fixes #18859
Related to #18870
Summary of the issue:
Since winBindings and #18833, NVDA spits continuous debug warnings about the inability to get a process handle for csrss.exe
Description of user facing changes:
No errors.
Description of developer facing changes:
None
Description of development approach:
Create a csrss appModule that always assumes csrss.exe to be alive.
CSRSS is an essential GUI process, therefore it can safely be considered always alive. It hosts the desktop object.
Before winBindings, the app module was also assumed always alive due to an obfuscated bug.
