5b3cef30f9
* - add support for host-driven AoT execution on zephyr; - add initial version of reference counting to prevent python code from inadvertently freeing tensors during garbage collection; - add support for numerical indices to host-drive AoT get_input(); - add two initial tests for host-driven AoT execution on zephyr; - rename existing zephyr AoT exec. test; * address PR feedback * increase stack size to accommodate qemu_riscv64 stack usage