[Process] added exit code to ProcessFailedException message
merged branch zakharovvi/process_exception_exitcode (PR #7628)

This PR was merged into the master branch.

Discussion
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[Process] added exit code to ProcessFailedException message

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | no
| License       | MIT
| Doc PR        | n/a

Commits
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7519fdc [Process] added exit code to ProcessFailedException message
[Security] Add SimpleForm authentication