Add Azle implementation of SHA example

[dansteren]

[!NOTE] I'm still having issues with getting motoko to build so here are the results without it.

SHA-2

	binary_size	SHA-256	SHA-512	account_id	neuron_id
Rust	477_702	82_511_961	56_525_962	42_432	44_430
Azle	5_292_861	13_119_571_588	23_486_915_350	2_992_894	2_722_967

Certified map

	binary_size	generate 10k	max mem	inc	witness	upgrade
Rust	500_374	6_199_155_471	2_228_224	983_538	288_338	5_816_678_045