add openssl package (#16)

Vendors OpenSSL 3.4.1 as static libraries (libcrypto.a, libssl.a) for
openpilot, following the same pattern as other vendored packages.

Uses module name openssl3 to avoid case-insensitive filesystem conflict
with pyOpenSSL's OpenSSL module on macOS.

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>

openssl/pyproject.toml

@@ -0,0 +1,15 @@
+[build-system]
+requires = ["setuptools>=64", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "openssl"
+version = "3.4.1"
+description = "OpenSSL cryptography library (static build)"
+requires-python = ">=3.8"
+
+[tool.setuptools.packages.find]
+include = ["openssl3*"]
+
+[tool.setuptools.package-data]
+openssl3 = ["install/**/*"]