feat: add `=`, `<=` and `>=` to `column_operation.rs` (#85) #49

Job	Run time
lint-and-test / Check Package	1m 36s
lint-and-test / Test Suite	9m 34s
lint-and-test / Format	17s
lint-and-test / Clippy	1m 42s
lint-and-test / Unused Dependencies	6m 46s
Release	3m 6s
	23m 1s

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