Add new versions for llama-cpp and also adding a couple of options

[czoido]

• Removing old b2038 version
• Adding options for building with curl (can use autodownload from hugginface repos), cuda (pending testing) and metal.
• Add options to build examples, I think it's worth adding as there are some that are very interesting and serve to test the options for curl, cuda, etc.
• Had to patch how curl is added but will try to open a PR to upstream

Leaving in draft until I can test the cuda part (some pieces missing)

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 7 (4ab25e2f630a0ebc1a74fa5a8d37641812a6f66c):

• llama-cpp/b3542:
  All packages built successfully! (All logs)

• llama-cpp/b3040:
  All packages built successfully! (All logs)

---

Conan v2 pipeline ✔️

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

All green in build 8 (4ab25e2f630a0ebc1a74fa5a8d37641812a6f66c):

• llama-cpp/b3542:
  All packages built successfully! (All logs)

• llama-cpp/b3040:
  All packages built successfully! (All logs)

[github-actions]

Hooks produced the following warnings for commit 4ab25e2

llama-cpp/b3542@#3a659dc9c29bf982e3c3d09dcd308f5a

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libggml.dylib' links to system library 'MetalKit' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libggml.dylib' links to system library 'CoreFoundation' but it is not in cpp_info.frameworks.

llama-cpp/b3040@#1d47074f770f2486565d7a3e40ff5c1f

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libllama.dylib' links to system library 'CoreFoundation' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libggml_shared.dylib' links to system library 'CoreFoundation' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libllama.dylib' links to system library 'MetalKit' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libggml_shared.dylib' links to system library 'MetalKit' but it is not in cpp_info.frameworks.

[AbrilRBS]

Looks great :)