Refactor hashmap memory representation to radix-trie based memory #98

Job	Run time
rvgo-lint	2m 20s
rvgo-abigen	54s
check-optimism-version-match	19s
op-program-test	1m 58s
rvsol-lint	6s
rvgo-tests	2m 6s
rvsol-tests	1m 3s
	8m 46s

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