add tls-p3 example and test

[rvolosatovs]

This adds an example using p3 wasi-tls interface as defined in WebAssembly/wasi-tls#17 tested using Wasmtime from this PR bytecodealliance/wasmtime#12174

Unfortunately, linting fails - it appears that componentize-py generates duplicates:

wit_world/__init__.py:25: error: Name \"result_unit_wasi_cli_types_error_code_future\" already defined on line 22  [no-redef]
wit_world/__init__.py:28: error: Name \"result_unit_wasi_cli_types_error_code_future\" already defined on line 22  [no-redef]

Given that this PR is not likely to be merged any time soon, I'm hoping that issue will be fixed in the meantime and this PR will just be rebased on top of the fix and the tests will pass. I've also based the work on my other outstanding PRs to simplify rebase in the future

$ componentize-py -d ../../wit -w tls-p3 componentize app -o tls.wasm
Component built successfully

$ wasmtime run -Sp3,inherit-network,tls,allow-ip-name-lookup -Wcomponent-model-async tls.wasm api.github.com
HTTP/1.1 200 OK
Date: Thu, 19 Feb 2026 11:45:52 GMT
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