Adjust WASM to use cert chain when in HA networks

[rentallect]

In an HA Ziti network, the ZBR must send a certificate chain to the wssER during the mTLS handshake.

We must adjust the WASM and associated JS-bridge code to use SSL_CTX_use_certificate() to load the end-entity certificate from the cert chain received from the Controller.

Then it should use SSL_CTX_add0_chain_cert() or SSL_CTX_add_extra_chain_cert() to add each intermediate certificate individually.

[rentallect]

shipped in 0.69.0