Add implementation for mbedtls - Initial work by @MabezDev

Co-authored-by: Scott Mabin <[email protected]>

Author: zvolin

Cargo.toml

@@ -26,12 +26,15 @@ tempfile = "3.1.0"
 [target.'cfg(target_os = "windows")'.dependencies]
 schannel = "0.1.17"
 
-[target.'cfg(not(any(target_os = "windows", target_os = "macos", target_os = "ios")))'.dependencies]
+[target.'cfg(not(any(target_os = "windows", target_os = "macos", target_os = "ios", target_os = "espidf")))'.dependencies]
 log = "0.4.5"
 openssl = "0.10.29"
 openssl-sys = "0.9.55"
 openssl-probe = "0.1"
 
+[target.'cfg(target_os = "espidf")'.dependencies]
+mbedtls = { version = "0.8.1", features = ["pkcs12", "std"], path = "/home/mabez/development/rust/embedded/util/rust-mbedtls/mbedtls" }
+
 [dev-dependencies]
 tempfile = "3.0"
 test-cert-gen = "0.9"