This commit implements the rest of the unimplemented instructions in the bulk-memory-operations proposal. Notably, this adds support for table.init, table.copy and elem.drop instructions toggled by FeatureBulkMemoryOperations. Given that, now wazero has the complete support for the bulk-memory-operations proposal as described in https://github.com/WebAssembly/spec/blob/main/proposals/bulk-memory-operations/Overview.md fixes #321 Signed-off-by: Takeshi Yoneda <takeshi@tetrate.io>