chore : Fix vulkan related compiler warnings, add help text, improve CLI options

[teleprint-me]

Fix vulkan related compiler warnings, add help text, improve CLI options

Overview

• Add prototypes for function definitions
• Invert logic of --no-clean option to be more intuitive
• Provide a new help prompt with clear instructions

Details

This PR addresses several issues related to the CLI tool for generating Vulkan shaders. The main changes include adding prototypes for function definitions, inverting the logic of the --no-clean option, and providing a new help prompt with clear instructions on how to use the tool effectively.

Notes

The addition of prototypes ensures that there are no undefined references during compilation. Inverting the logic of the --no-clean option makes it more intuitive for users to specify whether or not they want to remove temporary files after building. The new help prompt provides clear instructions on how to use the tool, making it easier for others to adopt and understand its capabilities.

Summary

• I have read the contributing guidelines
• Self-reported review complexity:
  • Low
  • Medium
  • High

I've tested this PR locally and ensured that all changes are functional and do not introduce any regressions in existing functionality.

$ ctest --rerun-failed --output-on-failure
Test project /mnt/valerie/forked/ggerganov/llama.cpp/build
# ...
100% tests passed, 0 tests failed out of 25

Label Time Summary:
curl             =   0.61 sec*proc (1 test)
eval-callback    =   0.61 sec*proc (1 test)
main             =  48.64 sec*proc (22 tests)
model            =   0.01 sec*proc (2 tests)

Total Test time (real) =  49.28 sec

Please review my changes and let me know if there are any questions or concerns before merging!

[teleprint-me]

I didn't notice that the binary wasn't ignored until afterwards. It's a minor quality of life change. Hopefully it's okay to bulk it in with this PR.

[0cc4m]

Just minor comments, looks good and works fine on Linux.