Improve wasmtime recipe

[uilianries]

Hello!

Thank you for providing the initial PR for wasmtime. Some important points should be considered to include to CCI before. This PR provides all changes required to be approved:

• Prebuilt artifacts are downloaded directly to build folder, not source
• Homepage follows the project homepage, not github page as main url.
• fPIC should not be used here because is not manageable. It will produce a warning, not an error.
• Use Compiler minor version only, patch is not needed. It follows same pattern from settings.yml
• Copy the artifacts according the configuration. Shared libraries should not be in a static package
• Compiler should not be part of the package id, as it's a prebuilt package
• The extension .dll.lib is not a MS pattern, and is not the first package which tries to use it in CCI.
• Use TARGETS to avoid cmake definitions propagation, it can mask your test package result
• Prefer cmake_find_package_multi to generate CONFIG. It generates more files == better test.

/cc @prince-chrismc

---

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the
  conan-center hook activated.

[prince-chrismc]

LGTM! 🚀

[madebr]

@uilianries
I failed to see your pr before I created #2. Sorry 😕

[uilianries]

@madebr No problem at all! Thank you for continuing this!

[redradist]

Close as it was merged already