Implement ModelReader trait #3466

Job	Run time
dojo-defi-test	7m 31s
dojo-core-test	5m 59s
clippy	4m 18s
docs	3m 46s
dojo-erc-test	25m 1s
dojo-primitive-test	7m 9s
ensure-wasm	1m 17s
dojo-spawn-and-move-example-test	4m 59s
fmt	54s
test	8m 47s
test-hurl	2m 59s
	1h 12m 40s

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