chore: add gas snapshot

.gas-snapshot

@@ -1 +1,17 @@
-FooTest:test_Example() (gas: 8662)
+RlnTest:test__Constants() (gas: 7878)
+RlnTest:test__InvalidRegistration__DuplicateCommitment(uint256) (runs: 1000, μ: 1421459, ~: 1421459)
+RlnTest:test__InvalidRegistration__FullSet() (gas: 3903854)
+RlnTest:test__InvalidRegistration__InsufficientDeposit(uint256) (runs: 1000, μ: 17189, ~: 17189)
+RlnTest:test__InvalidRegistration__InvalidIdCommitment(uint256) (runs: 1000, μ: 16963, ~: 16968)
+RlnTest:test__InvalidSlash__InvalidProof() (gas: 2386979)
+RlnTest:test__InvalidSlash__MemberNotRegistered(uint256) (runs: 1000, μ: 30265, ~: 30265)
+RlnTest:test__InvalidSlash__NoStake(uint256,address) (runs: 1000, μ: 1543863, ~: 1543863)
+RlnTest:test__InvalidSlash__ToRlnAddress() (gas: 1429629)
+RlnTest:test__InvalidSlash__ToZeroAddress() (gas: 1429467)
+RlnTest:test__InvalidWithdraw__InsufficientContractBalance() (gas: 1405367)
+RlnTest:test__InvalidWithdraw__InsufficientWithdrawalBalance() (gas: 10494)
+RlnTest:test__ValidRegistration(uint256) (runs: 1000, μ: 1413242, ~: 1413242)
+RlnTest:test__ValidSlash(uint256,address) (runs: 1000, μ: 1458302, ~: 1458302)
+RlnTest:test__ValidWithdraw(address) (runs: 1000, μ: 1456621, ~: 1456621)
+RlnTest:test__paginationCommitments() (gas: 14416)
+RlnTest:test__root() (gas: 4827)