feat(raiko): load program from elf for risc zero #781

Job	Run time
Build and test (native, nightly-2024-04-17)	7m 36s
Build and test (sp1, nightly-2024-04-17)	41m 38s
Build and test sgx in hardware	9m 2s
clippy	2m 10s
Build and test (risc0, stable)	1h 7m 34s
Build and test sgx with Docker	10m 20s
Build and test (sgx, stable)	14m 6s
fmt	15s
Test raiko-lib	2m 48s
	2h 35m 29s

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