Fix #123, declare FilenameState as uint32

[thnkslprpt]

Checklist

• I reviewed the Contributing Guide.
• I signed and emailed the appropriate Contributor License Agreement to GSFC-SoftwareRelease@mail.nasa.gov and copied cfs-program@lists.nasa.gov.

Describe the contribution

• Fixes FilenameState in FM_SetPermissionsCmd should be declared as uint32 type #123

Testing performed
GitHub CI actions all passing successfully (incl. Build + Run, Unit/Functional Tests etc.).

Expected behavior changes
No change with current logic - but avoids future issues if FM_SetPermissionsCmd is updated.

System(s) tested on
Debian 12 using the current main branch of cFS bundle.

Contributor Info
Avi Weiss   @thnkslprpt

[chillfig]

Nice catch! Looks good.

FM_SetPermissionsCmd will only check if the FilenameState is 0 but agreed that the logic should follow consistency to prevent future confusion.