Cargo Features

liboscore-msgbackend has no features set by default.

[dependencies]
liboscore-msgbackend = { version = "0.2.0", features = ["alloc"] }
alloc

Wrap the coap_message::heapmessage, and provide the oscore_test_msg functions for allocating and freeing one

When running tests, this is generally required.

Enables alloc of coap-message-implementations

Affects liboscore-msgbackend::oscore_test_msg_create, liboscore-msgbackend::oscore_test_msg_destroy, liboscore-msgbackend::with_heapmessage_as_msg_native